The middle of the map is too small and if you're playing against any team with a sniper they can perch in plain sight and the only way to sneak around them is to paint and swim up the small wall in the middle of the map. And any good sniper will be able to hit you before you're able to do all that.
And that's if there isn't someone already on top of that wall or in that hallway painting. Which is a pretty big if.
It's not a horrible map, but it's definitely the one that has the most limited amount of strategy.
Snipers are a hell of a lot easier to take out on the mall than at the rig imo. You can reach them in just one jump with a roller, whilst on the rig, the only way to take out the snipers is to somehow get on top of the first box without them noticing you're there.