I am kind of impressed by the game, but it is crippled by a few yet strong flaws in my opinion :
- the guns are underpowered or enemies are too tough, which makes shooting them tedious and not funny
- In the zombie maps, the fact that every dead soldier is turned into a zombie can escalate quickly into your base being overrun. Only zombie kills should turn into zombies.
- the spiders shooting from afar tend to gather in the same place, destroying absolutely everything in range, and even a rain of mortar shells and rockets won't dispatch them quickly. They are ruining the experience for me.