Noob question here but I've played on some servers where nanosuit's abilities are allowed and others that are more standard. Where you can't use the extra far jump or the stealth. I was wondering how you can tell what the server allows before you join?

Check the Game Modifier in server browser:

Standard (Normal game with Nanosuit)
Maximum (Hard mode 50% health, No friendly fire, no support bonuses etc.)
Cell Vs Rebel (No nanosuit)
New Recruit (New player, only rank 10 and below can join)
Custom (Depends on server)