Get past wave 50 isnt too hard you just need a signaler for airplanes an engineer for bunkers, officer for concentrate fire and other stuff, maybe a sniper for other snipers or in sniper blitz waves and a bazooka for tanks (don't have to) or u could just use land mines or tnt for tanks. (P.S. i think the more or more powerful units u have the more stuff they'll send)
Lol. To new players: if enemies are easy enough, advance; try not to move soldiers next to germans (melee battles usually take forever);and never group too many soldiers; and here is where some of the badges are: http://www.kongregate.com/forums/3/topics/20472
Unusually enough, on here, when ever you make a unit, then make an upgrade later (i.e.: armor +1lvl) you can't use repair drones to upgrade the ships to the appropriate upgrade lvl; but in gamebrew, you can upgrade them with the repair drones. [Sort of unfair in survival when you make upgrades and can't use them in your attack ships]
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