OK, to be open, last night I was on the losing team most of the night. Actually, it may have been the losing team because of me, but that is not the point. The reason I disclose that is so I won't be accused of not liking the settings because we lost.
OK that out of the way, my point is this: Last night, once the rebels had gotten ensconced in an objective, we could not blow them out of it for love nor money. I believe this was because the spawn settings allowed rebels not healed by medics to get back to the fight too quickly.
As you all no doubt know, the basic principle of modern infantry combat is to gain local fire supremacy - suppress with one squad and maneuver with another unit to attack. Without suppression, the moving units will usually get caught away from cover and mowed down. Without threat of "death" (i.e. a longer spawn time) defenders are more likely to brave incoming fire and stay in the open to shoot attackers, knowing they can spawn back in quickly.
This also means is that medics have much less worth (i.e keeping guys at the front alive) as guys can just respawn quickly and get back into the fight.
As I elluded to, I am sure the rebs had a number of guys at the objectives healed by medics and go back into the fight immediately, that is good, it makes sense and that is the way it should be. Its just that when you needn't wait for a medic to get back into the fray quickly that the gameplay suffers.
I'd like to see the spawn times increased, so that an attacking team, if it can eliminate medics in an objective area, has an opportunity to kill defenders and move in before the waves of just respawned reinforcements flood back into the objective.
I know no one likes to sit out of the fight while playing a game, but I think the increased strategies having to fight smarter would bring about would outwheigh the negative aspects.
So that's my thought on the matter. Maybe another 10 seconds? Try it and see if it works?