Heyyo,
Well, think of it like, the RTS game known as Starcraft, plus a FPS element like Aliens Vs Predators. As marines, you need to have 1 commander to tell you and your team where to go, and how to do things like build a structure here, go over here, attack this over here, etc. After that, your team (if they bother to listen) will go there and start to do your command. Usually at the start you wanna build an infantry portal, or your team will not be able to respawn. After that? I suggest building a refinery to get resources (money) and then an ammo depot near the infantry portal. It's always a good idea to bury your infantry portal into a far back place, hard for the enemy to get to. Then just build up some defences with a turret generator, and some turrets.
For the Hive (like the zergs in starcraft) you need to evolve yourself into a better warrior, or into a builder. The builder (forget its name.. I think a goerge) can then build buildings in the direction he's facing. Usually try to build some collectors (refinerys) and then some of those defensive pods. The 3 possible main hive locations also act as the spawnpoints for the hive, and the hive has no commander, so the hive depend on the usage of radio and voice commands in order to work efficiently.
Here's a link to download the latest RCbot beta:
http://filebase.bots-united.com/inde...on=file&id=210
To try RCbot in natural selection? easy, here's a few guides:
Install RCbot:
http://rcbot.bots-united.com/forums/...?showtopic=516
*Optional* install RCbot with Whichbot:
http://rcbot.bots-united.com/forums/...hp?showtopic=7