Level 32

Total Experience Required 157,234 [confirmed]

Level 100 progress: 2.3%

This is roughly:
Killing 525 people in Warzone, or...
Killing 535 people in Execution, or...
Killing 445 people in Wingman, or...
Scoring 112,310 points in Guardian, or...
Scoring 341,814 points in Annex, or...
Scoring 206,887 points in Submission.

Horde (TU4)

Completing 787 waves on Casual, or...
Completing 525 waves on Normal, or...
Completing 394 waves on Hardcore, or...
Completing 315 waves on Insane.

Or a combination of the above. Have fun!