Capture the flag was extremely fun. Some real stupid non sweaty shit, I love it.
Respawn is like 15 sec or something and trying to capture and protect the flag made for fun gameplay.
You also have $7500 to buy stuff for each respawn.
Some issues are
>50cal, AWP OP since some maps are large and they kill on one shot, while being affordable every round.

>Smaller maps with only 1 spawn point
Get to enemy spawn, bring out knife and rack in those kills lmao!

CTF seems really good for large pop and new players.
If you play Pavlov as friday night game with /vrg/ try out the CTF maps. There is a community server up 24/7 called "CTF 24/7" but no whitelist so you will get randos.