I also made a Plugin for you GG & Surrender. But it doesn't work well. I use this 5on5
https://github.com/splewis/csgo-pug-setup. WARMUP starts counting down the time, give the! Gg command and start WARMUP again. This time is loading the WARMUP / mp_warmuptime "300" / time in CSGO's gamemode_competitive.cfg. PUGSETUP's WARMUP is timeless, and the game starts after everyone gives READY. PUSETUP calls this command (mp_warmuptime "0") in my SERVER.CFG. I set that 300 to zero, but after counting one second, the game started again.