Don't put anyone in a bunker except Gunners - their rate of fire is SERIOUSLY reduced. Also, snipers, bazookas, and probably mortars won't fire from a bunker. Normal troops would do better being in a trench.
I think you should get a badge for getting 100 friendly kills with morons with bazookas... Also, what's the deal with people strolling casually through rocks and walls?
Been scrolling through comments. Good tactic I used when I was learning this was to stick a bunker about 80% of the way up the map, cam net it, and stick an engineer, an offier, 2 regs with tommy guns and a medic in it. They'll hold off anything at all until wave 75-90 and you can build whatever defenses or troops you like in the meantime - just get the engineer to kamikaze any tanks that show and drop mines on them, then run like hell. (mines for 1 TP, instead of explosives for 3TP)
"Random" my arse. Enemy artillery just landed 4 shells in my 2 trenches in one wave. Artillery blitzwave - everyone I had was under a camo net occupying about 4% of the whole screen area, and that's EXACTLY where those shells landed. What a pile of crap.
Flakpanzers killed me there. Best troops to use against them? German panzerfausts. They've got more kills against their tanks than I have. And I love the "start with a random squad" option. First time I had a bunch of retards. Was awesome :D
"This is a Panzergrenadier. If they can get near your trenches they will try to clear them..." Should be replaced with "if you have any trenches these guy will throw a grenade - inch perfectly - straight into it as soon as they spawn, instantly killing all your troops within 3 inches regardless of their health, and leaving any germans in the blast area completely unscathed".
Tiny typing error, but I thought I'd mention it.
How come the german grenades kill my troops even when they land miles away, but if they grenade themselves they don't seem to even notice? Can we have enemy hp visibility?
 "Bloons Tower Defense"){kind=icon}
 "Mud and Blood 2"){kind=icon}
 "SNAFU Tower Defense"){kind=icon}
 "The Imperium"){kind=icon}