Men-buy new blood then get the frag upgread after a while buy rpg upgread
scorpian-upgread barrel shots upgread them again
flame thoerower- buy the damage upgread and the other ones
spartain-buy smg upgread than buy the other upgread sorry dont know much about the spartains
grunt-buy squd upgread and suisiad grunt
dont know any more covanat units havent play much =( illl make another one as soon as i get new 360 for x mas or go to my friends house and play halo wars