Battlefront: Is there a specific number of units active for each side?

Question

At the end of each match in both Battlefront I and II, there is a listing of all the unit names and their accomplishments throughout the match.

Are all of these units active at any time during the match (assuming there are enough reinforcements to support them)? Or is there a smaller number actually active, with a waiting list (or something) of units waiting to spawn?

Answer 1

All of the units are active at once, and when they die, they use up a reinforcement to respawn. You probably figured this out by now, but that is the answer.