Gcomat Core or Extended

I just reinstalled garrysmod and went to get gcombat but noticed the extended this which i hadn’t seen before, whats the difference? Do I need to have them both or will they each work on their own?

It just adds some more guns. Personally, I wouldn’t even bother with GCombat anymore, I loved it while it was still being developed but now its old.

Use PewPew or Contraption Damage Engine instead.

Will this work with SBEP because gcombat is listed as a requirement for it?

Edit: Never mind i just found something on the thread saying it will work for SBEP
Thanks for the quick response