Experience balance.

The issue I have is you doing 4 maybe 5 tier 14/15 maps and gain a certain amount of Exp. you die once and all that shit is gone! what in the hell kind of system is that? It takes you 3 hrs to say gain 9mill experience and you die on your 6 run in a map and you lose 90% of that shit? That makes absolutely no sense at all! I mean I would be fine if I played several hrs and than I died in a map and they took away the EXP for that particular map that I was in! Not say 75% of the fucken exp I just got from 3 hrs of playing this buggy as fucken game!