what are the types of ammo for the weapons and can you upgrade your vehicle, weapons, and drones and possibly your equipment

I know the electric crossbow thing has 4 types of ammo (mind control,electricity,explosive dart and i think a regular bolt like a crossbow).The shotgun has buckshot,explosive but the vidoe showed 4 types of ammo for the shotgun.You can also upgrade your vehicle from what I've heard.

thank you i did not about the shotgun or the upgrades