tips
important thing to have on the field are snipers 2-3 (blue, white, yellow. thunder). 3-4 Machine guns (white, yellow. thunder). 2-3 life plus near end (blue, white. water) as when they kill they add a life when its below 50. and contant fire from atleast lvl 3 or above normals, so stationed around the field, for the snipers or machine guns burning heart is good and its also good to have the snipers and machine guns lvl 4-5 as machine guns fire out alot of damage and snipers will have enourmos damage, for wave 50 be sure to equip normals with thunder gems, the more thunder gems on a normal the better the damage as the bosses are weak to thunder