It seems that most A/D maps put the capture point in an 'arena' type location. (Not a Arena gamemode type, but the combat-arena type), where blue will have x entrances in the general area into it, and then a multitude of routes, cover, and options once inside this big area. Then each arena is separated by a wall with a couple of routes through it and maybe a room or two for the attackers to hole up in, before it repeats again for the next CP. Is there any sort of method to this? Or does it just come from studying maps and thinking critically about it.