apc rush is a very sweet tactic. I always do it when i know there is not much vehicle traffic. I've evens stopped a rush cuase of a jam, turned around and gotten healed and waited for the moment to be right. I also always take at least one other.
Funny story:
Called for an APC rush, filled it with 2 others, half way down to obelisk when 2 others asked to come, reversed out. Managed to save the APC and an engi hopped out and healed it, put the other 2 in and rushed in.
The funny part, the second time i was ignored, they though i'd leave again. OOps... surprise!! bye bye obelisk, followed by airstrip.