Ha yeah, that it would.
For warmap gametype control - we will have attack and defend (as well as R+ and ME) dictated by the state of the war - however, there will be a minor random chance that it WONT be the set gametype! That means, say, 90% of getting what the gametype is set at, and 10% chance that its random!
So, you can prepare for the gametype that is set, BUT you have to prepare for the possibility of doing something different, thus the need to be flexible as well as plan.
put it 20% and we will be silent for half a year