The following weapons are unlocked through the co-op portion for the four available kits in Battlefield 3. Score requirements were massively lowered in the R3 patch released on Dec. 6 2011.
| Unlock | Kit | Before R3 | After R3 |
|---|---|---|---|
| MP412 REX | All | 63,000 | 5,000 |
| KH2002 | Assault | 126,000 | 17,000 |
| MP7 | All | 189,000 | 34,000 |
| M39 EMR | Recon | 252,000 | 58,000 |
| 93R | All | 315,000 | 86,000 |
| SG553 | Engineer | 378,000 | 120,000 |
| G3A3 | Assault | 441,000 | 160,000 |
Trivia
- If you unlock all the weapons listed in the page, you can earn the Lock 'n' Load Achievement/Trophy.