Sup guys! Almost done with first epic map

[Biped]

Hey all. This is Biped, aka Im_Not_A_Biped. Im just getting back from college and picked up an old project of mine to make an epic map that's somewhat DAOW style but with endless replay value. I'm about 90% done and what snags im hitting I've been getting through. I have all the trigger work done and i've put alot of detail into the terrain. Does anyone have any ideas on how to keep lag to a minimum? I have an awful lot of custom models, but it's necessary. And computerpunk if you are out there I'm back so hit me up!! Thanks guys