firstly... noticed this post over several forums, please - one forum ONLY

no doubt others will be deleted -
now as your new... i'd please like you to sit down for a week, and look over the manual (and old DB online tutorials) and try to learn DB before asking questions of this nature.
however i'll answer them anyways

- no don't need to use BSP, however everything for it is already made for you making it childsplay to impliment!
- object collision and such are viable alternatives to detecting collision however, it still takes more than simply detecting that objects have hit each other to perform collision, the demos and experience will teach you this!
- BSP COLLISION HIT is bsp only, otherwise i'd be called something else COLLISION HIT

- Can't export BSP from Max, as no current exporter exist
however you can export Map and Compile Quake3 BSP from Gmax (the plugins are incompatible with every other max!)
and thats your lot
Anata aru kowagaru no watashi! 