Myth: Crawling on the roof into an enemy base will get you in.
Reality: Turrets can shoot upwards, and really, if you are smart enough to go onto the roof, the humans will be smart enough to look there

. If you want to get into a base (and do any damage once you are in) wait till you are something that can take a little damage. At least marauder, goon is much better.
-Bonus Tip: Its harder to hit a dretch/basilisk who moves on the floor, walls and roof, so that
might (it probably wont) get you in. And to be perfectly honest, once you get in, there isnt a lot you can do.
Oh yeah,
Hay, are there still people saying the Basilisk is not very good, of difficult to use? Just touch human and pet head, how can it be so hard?
It is hard. The basilisk is for more advanced players. Used well it can be great, but as a human, I have been grabbed by a basilisk and simply turned around and emptied my rifle clip into it, and killed it. In the next version it should have a much more powerful slash.