for large to medium tunnel systems u will need to try to group it in parts to cut down on lag for multiplayer maps, ya?!
that was my understanding! also, avoiding long straight hallways or just adding some corners can be good way to section or group the tunnel.
personally, i hate long straight hallways in tunnel systems! but thats just me.
BTW...i'm not saying anything about ur maps here Jack. just making a general statement. i haven't looked at ur maps...i'm busy making my own right now. cheers.