Are any of these servers what you are looking for?

Servers with "Deathmatch" and "GunGame" in the name:
GUNGAME DEATHMATCH - yaur.com
Gaming-Federation.com|GunGame5[DEATHMATCH]|FastRespawn|100Ti
gcgaming.net | GunGame Deathmatch Turbo | gameME
=||[_TWISTED__GUNGAME__CLUB_]||=Deathmatch|Stickynades
Coathanger's GungameDeathmatch +bhop
Quebec /
SPAWNPOINT.COM | CS:S - GUNGAME DEATHMATCH | 100tic
#Dumber [09] - GunGame [DeathMatch] - dumbclan.co.uk
| CSS#2 | Gungame Deathmatch @ TWKgaming.com
[GER] e.Rowdyz GunGame5 on tour=-|Deathmatch|HlstatsX| team-