best way to kill said target if off line and wanted to clear a mech D with 30k ea ball and pults 100k ram, first off gotta make sure most if not all meat is clear, then you need to snd a mech bows 50/50 with 100 ea meat make sure you include ram (100) although you only need one in the formula if you ensig the wave with either scout or arch with a decent hero you could get 50-70k ram kill per one of those waves, so 2 waves of those should wipe the ram out with decent heros, then just time a pile of 99k scout 1k arch behind those hits to kill the rest of the mechs, using inn heros you can get anywhere from 5-10k mech kill with them i say 99kscout 1k arch cause those will kill single troop reign and all of them first hit, then the ones to follow with take out mechs.