Would making a game mode like this be possible?

I want it to go like this:

if a team is eliminated, they lose, and if the timer runs out, red team wins. Is it possible to modify an existing game type to work like this, or even create it from scratch somehow? I'm not very good with gametypes.

that's a good idea.

No they wouldn't. (not the way the map is set up)

Looking at the logic_timer entity, I don't know how I'd use this to set a win condition... Can anyone help please? If there's another entity I should use instead, please let me know.

Ok there's a problem with this. Adding the logic_arena entity causes the game to ignore the timer. Is it maybe possible to set a trigger to make the game end when a timer running in the background hits a certain time?

edit: Ok, If I can figure out how the CP's entities for round-end works, I think I can leave those in, along with a timer that activates them.

However, I don't even see anything with the timer atm. The only options are "random interval" related. That doesn't sound like what I need at all. The team_round_timer seems to be ignored entirely when using the arena logic, so I need to find something else.

But I left it sitting for 10 minutes and the game didn't end.