my setup:
bunker #1:
Pellet gun
Super Thumber
Mr. Nuke
Mr. Nuke
Mr. Nuke
bunker #2:
Pellet gun
Super Thumber
Mr. Nuke
Mr. Nuke
Mr. Nuke
bunker #3:
Pellet gun
EMT
Mr. Nuke
Super Thumber
Mr. Nuke
Everything fully upgraded self..
this following solution for lvl 3;
t,6,11;b,6,7;m,6,9,90,1,wwjcrrorr;m,4,11,90,1,clorww;m,10,7,90,1,wwwjcruodl;m,10,11,90,1,cllorr;m,7,9,270,1,jcuuodd;
, makes it go faaaaast! :D