So I just made a map called Robo Arena and need some people to come play! its a 4v4 mantis arena map and would love you guys to come join! 
i’ll download it and check it out tomorrow 
I would but im going to bed shortly. I did something like this though my version was 6 player. It was fun.
I made everyone go on different teams and had a team spawn and respawn in a hanger where you could get in a mantis that spawned in about 10 to 25 secconds.
It was very fun.