Competitive: Clan Matches and Such

So in a server today, I heard someone ask about competitive gametypes+mutators. I thought this would be an interesting topic to discuss. Might I add competitive maps for clan matches and other official scrims?
So far, I saw people generally agree that instagib+(anything) was definitely competitive. I added arena+ctf.
Maps that people agree with that are competitive are Linear and Ghost.
Add your ideas for competitive maps and gametype+mutator combinations. I know we only have like 4 or 5 legit clans in this game, but this is definitely something to think about so clans can actually have a focus.
So far, I saw people generally agree that instagib+(anything) was definitely competitive. I added arena+ctf.
Maps that people agree with that are competitive are Linear and Ghost.
Add your ideas for competitive maps and gametype+mutator combinations. I know we only have like 4 or 5 legit clans in this game, but this is definitely something to think about so clans can actually have a focus.