| Unlockable: | How to Unlock: |
| Arsenal (10) | Upgrade all units to level 3 in a single online match |
| Atlantis Rising (10) | Complete the Atlantis Rising campaign |
| Deep 6 (20) | Get 200 depth charge kills |
| Dive Master (10) | Get 100 kills |
| Frenzy (30) | Complete each chapter on the Ultra difficulty setting |
| Humanity’s Hope (10) | Complete the Hope of Humanity campaign |
| Hydropwnage (20) | Win an online Conquest match by taking all of the control points (get a shutout) |
| Life Aquatic (15) | Upgrade all units, all races to level 3 |
| Lord of the Deep (35) | Get 10,000 kills |
| Navy of One (10) | Take over 100 control points |
| Nemo’s Wrath (10) | Complete the Nemo’s Wrath campaign |
| Swim Pals (20) | Complete each chapter in co-op mode |
