techhead: From main cannon is not too hard to reach. Roof aren't tyrant-proof, main cannon can launch tyrant there, or is possible jump there from bouncing pads. Platforms are small, otherwise humans will be building there like crazy - you must be careful with walking :-) Landing need little practice.
Jettards will be allways problem with this map, but - if is there jettard camper, he missing in main base :-)