1. Download APK first, then copy to your Android device's SD card

2. Install APK, DO NOT open app

3. Download obb files, then rename to 'main.152.com.dreamfarmgames.wot.armorinspector.android2.obb'

4. Copy obb file to /SDCARD/Android/obb/com.dreamfarmgames.wot.armorinspector.android2/main.152.com.dreamfarmgames.wot.armorinspector.android2.obb