If you want CoD4: Modern Warfare's tight gunplay, progression, and military vibe but need ESRB **Teen**, these are the closest 360 experiences:
| If You Want… | Play |
|---|---|
| Modern military, destruction, vehicles | Battlefield: Bad Company 2 |
| Tactical planning, breach & clear | Rainbow Six: Vegas 2 |
| Sci-fi arena, equal starts | Halo 3 / Reach |
| Loot grind + co-op | Borderlands 2 |
All run on Xbox 360 / backward-compatible on Series X|S with FPS boost.