Talk:Contagious Spread/@comment-24212539-20131231020830/@comment-24085018-20140101143711

You can try derelict infested defense as electric crawlers spawn there. The spawn rate of crawlers can be pretty bad though. When i tried it they were spawning at around 10-15 per 25 waves in the first 5-6 runs i did. Suddenly now i am finding that there's only around 1-2 per 5 waves which is pretty low.

Go with a Nekros and spam desecrate when you see an electric crawler & kill him which give's you twice the chance.