The search query indicates a user looking for an mobile version of the classic real-time tactics video game Commandos: Behind Enemy Lines (originally developed by Pyro Studios and published by Eidos Interactive in 1998). The original game was designed for PC (Windows) , not Android.
You need the original .iso or extracted game folder. Search for "Commandos Behind Enemy Lines abandonware" on reputable sites like MyAbandonware or Archive.org .