There are two big ones, one at the end of each of those red lasers in the map shown before. Just one was destroyed, the one around the closest corner. No 'small ones'. Alrough nobody has gotten a visual on the second one yet, they are both the same kind.
I thought you sent both of them at one target, through, sorry. I'll edit that post and make it so the other one is still travelling. That straight is at least several dozen feet long.