Gcombat Issues

Ever since the Gmod update in which you can’t switch the game mode form sand box with out the console command, now when I try to spawn a Gcx Cannon or something it says weapons limit has been reached.

I’m using Evolve admin and nothing else than sand box.

Could someone post the commands for switching game modes and how to raise weapon limits?

Modify shared.lua
i’m never try it, i suggest it