Carbon... got to wave 77, but this is wave 68 and 69. Feel free to use the strategy

42 wave.resistance solo

31 wave.bakaara solo

92 seatown co-op

145 underground co-op

47 seatown

55 underground

47 fallen

not cockey, just good

Seatown Wave 32 on normal co-op

Resistance wave 26 co-op single 21

I did them all solo (exept for Arkaden) to get the 'cheevo for Xbox of reaching level 15 or higher on every map.  I have done the same on the new maps as well, just thought I should remain consistent.

I have also done one round on resistance Co-op, where we breached level 40.  Damn things move so fast at that point, I have no idea how folks get much higher then this.