APK MOD INFO
Name of Game: Combat Trigger: Modern Dead 3D
VERSION: 1.5

Name of the cheat, mod, or hack (credits: wendgames):
-UNLOCKED

Combat Trigger: Modern Dead 3D MOD APK 1.5 (Unlocked)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb