Very easy Wave Clean

[Crysten]

You dont need any walls or towers to defeat a wave.
If you are halfway decent with your economy and have at least 3-5 flamethrowers in your army, you can just park your army under a Spawn crystal. your army will kill the minions faster than they can spawn.
If you are good you can do that tactic at wave 3.

P.s. Build a torch-house (or whatever it is called) around your army for the heal and to not be horrified.

[mortis7]

Good luck with giants

[Cryptic]

ANOTHER lame ass exploit.

play it right. that's just cheesing the game.

[OKOK]

ya giants are horrible. how to counter these?

[alden.monzon]

Not gonna work with the mid to late games because of the giant enemies.

[Rybosaur]

Yeah, let me see your flamers defeating the giants. It takes so many arbalest to kill that monster. Though I hope they introduce some Single Target towers to deal with those. There is no way to have enough arbalests to deal with them. Especially at the end.

[Crysten]

Well to be honest I dont know where the problem was, so I reloaded an old safe-file for wave 5 (10000 minions "normal difficulty") and tryed to kill them with a fraction of my army.
Hero lvl 5
22 Shield guys
22 Crossbows
4 Balistas
6 Flamethrowers
All of the soldiers were lvl 1. At the end I only killed 7800 of them but than again this was wave 5. Wave 3 and 4 are way smaller and have less Giants so I dont see a problem here.
Ps. The Tourch House must be near so you get the Bonuses. Melee skill lvl 3 was 10% life leach. Range skill lvl 3 was firearrow and siege weapon upgrade lvl 3 was stun if that can help you guys.
The important part is that your army is directly under the spawn crystal so you can kill them faster than they can spawn. The unit itself is not that important.
I tryed the wave again with
Hero lvl 5
144 Shield guys
and I won with 32 alive. Just so you know the Shield Dudes almost do no dmg but who needs dmg with that much Headtrauma they deliever.