“A high-capacity PDW with a unique design. Lower effective damage is offset by a high rate of fire.”

| Damage | 20 |
| Rate of fire | 900 |
| Magazine | 50 |
| Hipfire | 47 | |
| Precision | 35 | |
| Control | 56 | |
| Mobility | 68 |
| Signature Weapon | Engineer |
| Unlock | Rank |
| Requirement | Rank 36 |
| Added in | 1.0.1.0 (Launch) |
5 patch notes mentioning the USG-90, newest first. Each entry is the exact line from EA's Game Update notes.
| From | To | Change | |
|---|---|---|---|
| USG-90 | 570 m/s | 543 m/s | -4.74% |
| USG-90 | 42.8° | 35.5° | -17.1% |
| Change | |
|---|---|
| PW7A2, USG-90 | Adjusted recoil behaviour to improve effectiveness at range while slightly increasing handling difficulty up close. |