There can be a new map (or more) where there is a flag on each end of it. Both teams are trying to cpature the other flag. But if they get killed, then they respawn at there own flag. Whichever team captures the opponents flag 3 times wins, or which ever team has more flag captures by a certain amount of time, then they win. It would be a mixture of rvb(since there are two teams) and tdm(since you can respawn and the water does not rise), however you are not going for kills but flagcaptures. But besides that there are still crates and stuff.
#Capture the flag gamemode.
ionic mist
neon shard
would go well in a mode rotation