Yeahh those arches were a last attempt at cover, i kinda made them for no reason. But there is a really good "jump" that i have discovered from them. You go up the tube, and do a crouch jump bounce off of the large triangle ramps on the side of the tube. From there you can fly through the air, and with the speed and momentum, hit the top of those arches. From there you can bounce right into the base.
But i will probably remove them. They do look messy now that i look at it. I guess ill forfeit that amazing jump :[ (For those of you who want to see it, here it is)
So yeah ill get to work on removing those arches. The spawns might be moved a bit. Thanks for the input :D
As for the Sniper thing. Its pretty easy to counter the sniper by going up the tube. Its not much of an issue.