hmmm IDK exactly where the level is located but I can tell you a few steps that might help you find it:
Breakpoint all PUSH fieldNumber in your game. Some may be activated even if you teleport to anywhere, just disable them. Once you click teleport,you stop stop in the PUSH you once "breakpointed", near it should be some level comparison.
Another idea:
Place a memory breakpoint on read in the character table in game.exe, more precisely in the character's level location, when anything tries to read that value.
But Im not sure, is not this thing configured in the same place where you define the map level ?