At this point one recruitment center outputs 5 population to recruits every 5 sec. If you have more recruitment centers they start outputting 5 recruits every 5 seconds from the moment they are built.
Neutral capture points also give you recruits, but at the moment they are bonuses and not deducted from the total population. This might change.
And yes the perceptive player can retreat early when he notices there aren't enough resources to force a victory. However the retreating player will retreat at a penalty, the player has to decide if that penalty is worth more than damaging the other player while he's still in the game.
I hope this answers your question. Values will/might change during beta.
Last edited by JihadJoe; 24/06/13 03:19 PM.