Battle, by 
I think the pairing of the big vertical areas and the vertical weapons works well here, though it may feel even more random than usual whether you hit people—Minimap might be in order. Bogs aren't the commonest theme but this hits it well, though fewer straight lines would help. Seems like a fine little level to me!
ETA with later thoughts: I'd raise the ceiling in the top left so your newly powered-up mortars can actually hit people. The colors are very clean, making it very easy to tell what's solid and what's not, but it does mean the walls are on the boring side. I don't really know what's going on in the background, but I like it. The level is big enough that it doesn't end up being Spaz-biased. Very pure experience.
