Level 38

Total Experience Required 258,416

Level 100 progress: 3.79%

This is roughly the same as:

Killing 431 people in Warzone, or...
Killing 440 people in Execution, or...
Killing 365 people in Wingman, or...
Scoring 92,292 points in Guardian, or...
Scoring 280,887 points in Annex, or...
Scoring 170,011 points in Submission.

Horde (TU4)

Completing 647 waves on Casual, or...
Completing 431 waves on Normal, or...
Completing 324 waves on Hardcore, or...
Completing 259 waves on Insane.

Or a combination of the above. Have fun!