Can I make a really(relatively) big map and have a campaign? I mean like a single player campaign, like bioshock, halo, crysis etc have done. I don't mind it only having rather average graphics, I was thinking a lot of it would be in big space stations (maybe having some battles in the local space outside the space station using ships like the covenant have in Halo) I've seen some posts from other members but they are from a few years ago, I don't know what the game is like now. I know the game is mostly designed for small areas, but I was wondering, can I design a really big map, and the game loads the areas dynamically? Also, can I have triggered events like AIs (aliens and such) coming at me in parts of the game, and they walk relatively realistically, etc?

Sorry about the massive amount of questions, I have played around with GTKRadiant before, but I'm not sure if any of what I've suggested is possible. I really hope it is.