little tip for y'all, set your staring guys up in a straight line, then taunt the germans till u can get a spec ops, add him to the line, taunt till u can get another one, add him to the line, taunt till u can get machine gunner. helps alot!
it gets kinda hard, i mean really hard, you have to back track to old places to fight guys that youve killed 100 times to get small amounts of exp so you can progress further into the game. kinda complicated unless u know wat ur doing
lol! i just make ones that are auto matic and the bike does the same thing every time! ha ha! i can make it endo in mid-air and do all kinds of kool stuff
to pop the steels you can wither
a. drop a pinaple in front of then so it explodes
b.fully upgrade the boomerang monkey
c.use the cannon thats fully upgraded (maby it doesnt have to be fully upgraded, but mine always is before the lead ballons come)
hope i could help