group for to connect on my L4D2 dedicated server

server specifications:
* HP bar will appear above head
* FF to allies will return damage to you
* The amount of zombies(ofc include special, but not for tank) will automatically increase or decrease depending on the number of players.
* Significant increase in gun ammo
* Machine guns and grenade launchers can be replenished with ammunition
* The shop function allows you to use points to use items, automatic bhop, and tracers
* There are many kinds of crazy tanks, and BOSS tank on the final chapter.
* Melee weapons have a blow-off effect that can blow away humans and tanks. The amount of blow-off effect differs depending on the type of melee weapon.