diff --git a/TODO.md b/TODO.md
index b138d93..81cc7df 100644
--- a/TODO.md
+++ b/TODO.md
@@ -103,8 +103,6 @@ Common UI
 Technical
 ---------
 
-* Fix "npm test" returning 0 even on failure
-* Fix "npm start" stopping when there is an error in initial build
 * Pack sounds
 * Add toggles for shaders, automatically disable them if too slow, and initially disable them on mobile
 
diff --git a/activate_node b/activate_node
index 5548774..27d88e6 100644
--- a/activate_node
+++ b/activate_node
@@ -10,5 +10,5 @@ fi
 
 vdir="./.venv"
 test -x "${vdir}/bin/nodeenv" || ( virtualenv -p python3 "${vdir}" && "${vdir}/bin/pip" install --upgrade nodeenv )
-test -e "${vdir}/node/bin/activate" || "${vdir}/bin/nodeenv" --node=9.3.0 --force "${vdir}/node"
+test -e "${vdir}/node/bin/activate" || "${vdir}/bin/nodeenv" --node=9.11.1 --force "${vdir}/node"
 source "${vdir}/node/bin/activate"
diff --git a/package.json b/package.json
index 44c3fcf..77810ba 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "out/build.js",
   "scripts": {
     "build": "run build",
-    "test": "run test",
+    "test": "run ci",
     "start": "run continuous",
     "codecov": "remap-istanbul -i out/coverage/coverage.json -o out/coverage/mapped.json -t json && codecov -f out/coverage/mapped.json",
     "deploy": "run deploy"
@@ -41,4 +41,4 @@
     "parse": "^1.11.0",
     "phaser": "2.6.2"
   }
-}
+}
\ No newline at end of file
diff --git a/runfile.js b/runfile.js
index 1b6aac4..b606d50 100644
--- a/runfile.js
+++ b/runfile.js
@@ -14,6 +14,8 @@ String.prototype.rsplit = function (sep, maxsplit) {
     return maxsplit ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit)) : split;
 }
 
+let forever = () => new Promise(() => null);
+
 /**
  * Promise-compatible version of glob
  */
@@ -26,141 +28,139 @@ function list(pattern) {
 /**
  * Asynchronous execution of shell commands
  */
-function exec(command) {
-    return run(command, { async: true });
+async function exec(command) {
+    await run(command, { async: true });
 }
 
 /**
  * Build app from typescript sources
  */
-function ts(dist = false) {
+async function ts(dist = false) {
     console.log("Building app...");
-    return exec(`tsc -p ${dist ? "./tsconfig.dist.json" : "."}`);
+    await exec(`tsc -p ${dist ? "./tsconfig.dist.json" : "."}`);
 }
 
 /**
  * Start watching for typescript changes
  */
-function watch_ts() {
+async function watch_ts() {
     watch(["./src/**/*.ts", "package.json"], () => ts());
+    await forever();
 }
 
 /**
  * Build an atlas of images for a given stage
  */
-function atlas(stage) {
+async function atlas(stage) {
     shell.rm('-f', `out/assets/atlas${stage}-*`);
-    return list(`data/stage${stage}/image/**/*.{png,jpg}`).then(files => {
-        let opts = {
-            name: `out/assets/atlas${stage}`,
-            fullpath: true,
-            width: 2048,
-            height: 2048,
-            square: true,
-            powerOfTwo: true,
-            padding: 2
-        };
-        return new Promise(resolve => gfPacker(files, opts, resolve));
-    }).then(() => {
-        return list(`out/assets/atlas${stage}-*.json`);
-    }).then(outfiles => {
-        return Promise.resolve(outfiles.map(file => path.basename(file).replace('.json', '')))
-    });
+
+    let files = await list(`data/stage${stage}/image/**/*.{png,jpg}`);
+
+    let opts = {
+        name: `out/assets/atlas${stage}`,
+        fullpath: true,
+        width: 2048,
+        height: 2048,
+        square: true,
+        powerOfTwo: true,
+        padding: 2
+    };
+    await new Promise(resolve => gfPacker(files, opts, resolve));
+    let outfiles = await list(`out/assets/atlas${stage}-*.json`);
+    return outfiles.map(file => path.basename(file).replace('.json', ''));
 }
 
 /**
  * Build a single data pack
  */
-function pack(stage) {
+async function pack(stage) {
     console.log(`Building pack ${stage}...`);
 
     let getKey = x => x.replace(/\//g, "-").replace(/\.[a-z0-9]+$/, '');
 
-    return atlas(stage).then(files => {
-        return Promise.resolve(files.map(file => {
-            let fname = path.basename(file);
-            return {
-                type: "atlasJSONHash",
-                key: fname,
-                atlasURL: `assets/${fname}.json?t=${Date.now()}`,
-                textureURL: `assets/${fname}.png`,
-                atlasData: null
-            }
-        }));
-    }).then(items => {
-        return list(`data/stage${stage}/sound/**/*.{mp3,wav}`).then(files => {
-            return Promise.resolve(items.concat(files.map(file => {
-                const [name, ext] = file.rsplit('.');
-                const key = getKey(name.replace(`data/stage${stage}/sound/`, ''));
-                shell.cp(file, `out/assets/${key}.${ext}`);
-                return {
-                    type: "audio",
-                    key: key,
-                    urls: [`assets/${key}.${ext}?t=${Date.now()}`],
-                    autoDecode: (ext == 'mp3')
-                };
-            })));
-        });
-    }).then(items => {
-        return list(`data/stage${stage}/shader/**/*.glsl`).then(files => {
-            return Promise.resolve(items.concat(files.map(file => {
-                const [name, ext] = file.rsplit('.');
-                const key = getKey(name.replace(`data/stage${stage}/shader/`, ''));
-                shell.cp(file, `out/assets/${key}.${ext}`);
-                return {
-                    type: "shader",
-                    key: key,
-                    url: `assets/${key}.${ext}?t=${Date.now()}`
-                };
-            })));
-        });
-    }).then(items => {
-        let packdata = {};
-        packdata[`stage${stage}`] = items;
-        return new Promise(resolve => fs.writeFile(`out/assets/pack${stage}.json`, JSON.stringify(packdata), 'utf8', resolve));
+    let files = await atlas(stage)
+    let items = files.map(file => {
+        let fname = path.basename(file);
+        return {
+            type: "atlasJSONHash",
+            key: fname,
+            atlasURL: `assets/${fname}.json?t=${Date.now()}`,
+            textureURL: `assets/${fname}.png`,
+            atlasData: null
+        }
     });
+
+    files = await list(`data/stage${stage}/sound/**/*.{mp3,wav}`);
+    items = items.concat(files.map(file => {
+        const [name, ext] = file.rsplit('.');
+        const key = getKey(name.replace(`data/stage${stage}/sound/`, ''));
+        shell.cp(file, `out/assets/${key}.${ext}`);
+        return {
+            type: "audio",
+            key: key,
+            urls: [`assets/${key}.${ext}?t=${Date.now()}`],
+            autoDecode: (ext == 'mp3')
+        };
+    }));
+
+    files = await list(`data/stage${stage}/shader/**/*.glsl`);
+    items = items.concat(files.map(file => {
+        const [name, ext] = file.rsplit('.');
+        const key = getKey(name.replace(`data/stage${stage}/shader/`, ''));
+        shell.cp(file, `out/assets/${key}.${ext}`);
+        return {
+            type: "shader",
+            key: key,
+            url: `assets/${key}.${ext}?t=${Date.now()}`
+        };
+    }));
+
+    let packdata = {};
+    packdata[`stage${stage}`] = items;
+    await new Promise(resolve => fs.writeFile(`out/assets/pack${stage}.json`, JSON.stringify(packdata), 'utf8', resolve));
 }
 
 /**
  * Build data packs
  */
-function data() {
+async function data() {
     shell.mkdir("-p", "out/assets");
-    return Promise.all([1, 2, 3].map(stage => pack(stage)));
+    await Promise.all([1, 2, 3].map(stage => pack(stage)));
 }
 
 /**
  * Start watch for data changes
  */
-function watch_data() {
+async function watch_data() {
     watch(["./data/**/*.*"], () => data());
+    await forever();
 }
 
 /**
  * Copy the vendors from node_modules to dist directory
  */
-function vendors() {
+async function vendors() {
     console.log("Copying vendors...");
     shell.rm('-rf', 'out/vendor');
     shell.mkdir('-p', 'out/vendor');
     shell.cp('-R', 'node_modules/phaser/build', 'out/vendor/phaser');
     shell.cp('-R', 'node_modules/parse/dist', 'out/vendor/parse');
     shell.cp('-R', 'node_modules/jasmine-core/lib/jasmine-core', 'out/vendor/jasmine');
-    return Promise.resolve();
 }
 
 /**
  * Start watching for vendors changes
  */
-function watch_vendors() {
+async function watch_vendors() {
     watch(['package.json'], () => vendors());
+    await forever();
 }
 
 /**
  * Trigger a single build
  */
-function build(dist = false) {
-    return Promise.all([
+async function build(dist = false) {
+    await Promise.all([
         ts(dist),
         data(),
         vendors()
@@ -170,35 +170,47 @@ function build(dist = false) {
 /**
  * Optimize the build for production
  */
-function optimize() {
+async function optimize() {
     // TODO do not overwrite dev build
-    return exec("uglifyjs out/build.dist.js --source-map --output out/build.js");
+    await exec("uglifyjs out/build.dist.js --source-map --output out/build.js");
 }
 
 /**
  * Deploy to production
  */
-function deploy(task) {
-    return build(true).then(optimize).then(() => {
-        return exec("rsync -avz --delete ./out/ hosting.thunderk.net:/srv/website/spacetac/")
-    });
+async function deploy(task) {
+    await build(true);
+    await optimize();
+    await exec("rsync -avz --delete ./out/ hosting.thunderk.net:/srv/website/spacetac/");
 }
 
 /**
- * Run tests in karma, using freshly built app
+ * Run tests in karma
  */
-function test(task) {
-    return Promise.all([ts(), vendors()]).then(() => {
-        return exec("karma start spec/support/karma.conf.js");
-    }).then(() => {
-        return exec("remap-istanbul -i out/coverage/coverage.json -o out/coverage -t html");
-    });
+async function karma() {
+    await exec("karma start spec/support/karma.conf.js");
+}
+
+/**
+ * Run tests in karma (suppose is already built)
+ */
+async function test(task) {
+    await karma();
+}
+
+/**
+ * Run tests in karma, using freshly built app (for continuous integration)
+ */
+async function ci(task) {
+    await Promise.all([ts(), vendors()]);
+    await karma();
+    await exec("remap-istanbul -i out/coverage/coverage.json -o out/coverage -t html");
 }
 
 /**
  * Serve the app for dev purpose
  */
-function serve() {
+async function serve() {
     liveServer.start({
         host: '127.0.0.1',
         port: 8012,
@@ -206,31 +218,52 @@ function serve() {
         ignore: 'coverage',
         wait: 500
     });
-    return new Promise(() => null);
+    await new Promise(() => null);
 }
 
 /**
  * Continuous development server
  */
-function continuous() {
-    return build().then(() => Promise.all([
+async function continuous() {
+    try {
+        await build();
+    } catch (err) {
+        console.error(err);
+    }
+
+    await Promise.all([
         serve(),
         watch_ts(),
         watch_data(),
         watch_vendors()
-    ]));
+    ]);
+}
+
+/**
+ * Wrapper around an async execution function, to make it a runjs command
+ */
+function command(func) {
+    return async function () {
+        try {
+            await func();
+        } catch (err) {
+            console.error(err);
+            process.exit(1);
+        }
+    }
 }
 
 module.exports = {
-    ts,
-    watch_ts,
-    data,
-    watch_data,
-    vendors,
-    watch_vendors,
-    build,
-    test,
-    deploy,
-    serve,
-    continuous
+    ts: command(ts),
+    watch_ts: command(watch_ts),
+    data: command(data),
+    watch_data: command(watch_data),
+    vendors: command(vendors),
+    watch_vendors: command(watch_vendors),
+    build: command(build),
+    test: command(test),
+    deploy: command(deploy),
+    serve: command(serve),
+    continuous: command(continuous),
+    ci: command(ci)
 }
diff --git a/src/core/actions/VigilanceAction.spec.ts b/src/core/actions/VigilanceAction.spec.ts
index 341148d..1577239 100644
--- a/src/core/actions/VigilanceAction.spec.ts
+++ b/src/core/actions/VigilanceAction.spec.ts
@@ -24,25 +24,25 @@ module TK.SpaceTac.Specs {
                 intruder_count: 0,
                 intruder_effects: [new ValueEffect("hull", -1)]
             });
-            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 for all incoming ships");
+            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 on all incoming ships");
 
             action = new VigilanceAction("Reactive Fire", { power: 2, radius: 120 }, {
                 intruder_count: 1,
                 intruder_effects: [new ValueEffect("hull", -1)]
             });
-            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 for the first incoming ship");
+            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 on the first incoming ship");
 
             action = new VigilanceAction("Reactive Fire", { power: 2, radius: 120 }, {
                 intruder_count: 3,
                 intruder_effects: [new ValueEffect("hull", -1)]
             });
-            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 for the first 3 incoming ships");
+            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 on the first 3 incoming ships");
 
             action = new VigilanceAction("Reactive Fire", { power: 2, radius: 120, filter: ActionTargettingFilter.ALLIES }, {
                 intruder_count: 3,
                 intruder_effects: [new ValueEffect("hull", -1)]
             });
-            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 for the first 3 incoming team members");
+            check.equals(action.getEffectsDescription(), "Watch a 120km area (power usage 2):\n• hull -1 on the first 3 incoming team members");
         });
 
         test.case("handles the vigilance effect to know who to target", check => {
diff --git a/src/core/actions/VigilanceAction.ts b/src/core/actions/VigilanceAction.ts
index fd6e69b..ffaccd9 100644
--- a/src/core/actions/VigilanceAction.ts
+++ b/src/core/actions/VigilanceAction.ts
@@ -49,11 +49,11 @@ module TK.SpaceTac {
 
             let suffix: string;
             if (this.intruder_count == 0) {
-                suffix = `for all incoming ${BaseAction.getFilterDesc(this.filter)}`;
+                suffix = `on all incoming ${BaseAction.getFilterDesc(this.filter)}`;
             } else if (this.intruder_count == 1) {
-                suffix = `for the first incoming ${BaseAction.getFilterDesc(this.filter, false)}`;
+                suffix = `on the first incoming ${BaseAction.getFilterDesc(this.filter, false)}`;
             } else {
-                suffix = `for the first ${this.intruder_count} incoming ${BaseAction.getFilterDesc(this.filter)}`;
+                suffix = `on the first ${this.intruder_count} incoming ${BaseAction.getFilterDesc(this.filter)}`;
             }
 
             let effects = this.intruder_effects.map(effect => {