(I'm playing it on linux, because I've just got a crappy laptop for a computer to play on, soo)

Do i just suck, or is it brutishly hard, even on normal difficulty, playing the campaigns?

Playing it easy, is way to easy, but just ad a tad of difficulty, and the enemies are tearing my sissyfied troops to shreds. Especially those darned trolls.

And yeah, i do feel like i play the game strategic and all that, i don't suck that bad. The enemy just keep pouring out troops. And being just a little patience as a tactic won't work, because of the limited number of moves.