I agree with catalyst - it's really annoying with a fire-bullet M249 SAW to have to just one-shot every single little missile on the first levels. I managed to beat the first 10 or so in a row just by holding down the mouse button without moving.
Infinite,9-1,17-1,10-1,1-15,7-1,16-1,4-1,5-1,1-14,12-1,11-1,5-1,4-1,19-1,1-16,19-1,20-1,1-32,20-1,1-6,19-1,6-1,1-8,3-1,11-1,3-1,1-4,19-3,1-8,3-1,6-1,3-1,1-4,20-1,19-1,1-9,3-3,1-7,19-2,1-16,19-3,1-16,19-3,1-16,19-1,4-1,3-1,1-4,3-1,19-1,1-9,6-1,19-1,6-1,1-6,20-1,1-10,6-1,1-65,6-1,1-9,t229:100,t231:128,t249:128,t315:128, #
For some reason, the path changes even with the direction tiles.
I found it the most sad when I realized they were killing my human companions. I stopped running away and started to shield them, and that's probably why I died so early.