Whaaat? The snipers are absolutely busted haha. One of our devs thought the same way and asked to change something about it, but then he realized they are rather unbalanced than weak. Especially in the third level you really need snipers. I know there's a bug that you don't really pass on to lvl 3 after lvl 2, but repeat the same level. Have you played through level 3 without snipers at all?
Thanks for the feedback though, and thanks for playing!!