It seems to me that it effects the spawning in player the least.
Example: Attempting a take, I camp the spawn hanger while the troops are on the way. Hanger comes up, and I hit the first tank out of the hanger. As more people start to spawn out of the hanger, one appears out of thin air already out of the hanger, and the first thing I see is a muzzle flash as the tank appears.
Given the time it takes to start and move forward, I suspect it was several seconds before I it even appeared on my end.
It's all good... I accept the limitations of internet play.