Don't enjoy playing playing megatowers/@camper maps? Don't play it. Don't like how it's killing your frame rate? Don't play it. There's plenty of populated servers available in the lobby that play official & well optimised custom maps.
Personally, I don't believe in any map restrictions. I feel the decision should be made by players, if somebody decides to call a map vote.
Personally, I don't believe in any map restrictions. I feel the decision should be made by players, if somebody decides to call a map vote.