hmm not good, not bad
there were a few flaws.
1) it would be better to have infinite ammo for the primary weapon
2) the different secondary weapons suck ... if you collect ammo of one of them you lose the other.
3) i think i stood there and killed about 100 men and then i noticed, that i have to stand on their corpses to make the hill higher, because the enemies walk on the ground if you do and then they wont lie on top of the hill!