Stairway2Heaven & S2H Slayer

Stairway2Heaven is a really old map me and my friend made when the Heroic map pack first came out, I think it was made on the night they where released. S2H Slayer is the gametype my friend made for this so I thought I would post it aswell.
I thought of the name when we where mucking around on foundry for the first time and then we made this.

Link-The Map
The Gametype

Overview of the main part of the map:

The almost impenatrable spawns:

We have tested this with 4 teams of 4 and the gameplay is really good.
This map has no interlocking as it was made before that glitch was found.
If there are any suggestions as to what needs to be fixed other then interlocking please tell me as I am in the process of making a V2 (oh and if you don't like the weapon placement then don't yell at me because my friend was the one who did all the weapon placement).

Weapons on map:
Sniper Rifle x1 (At the very top)
Rocket Launcher x1 (In the middle of the structure)
Energy Sword x1 (Near the truck and the little maze)
Battle Rifles x8 (1 in each open double box next to the spawns)
Shotgun x1 (In the tunnels underneath)
Brute Shot x1 (Near the corner wall that is facing down like a tent)
Needler x1 (Behind one of the forklifts)
Mauler x1 (On top of the dumpster near one of the spawns)
SMG x2 (In the tunnels underneath)
Frag grenades x2 (1 pair of two)
Plasma grenades x8 (4 pairs of two)
Spike grenades x4 (2 pairs of two)

Equipment:
Radar Jammer x1 (In the middle level in one of the side single open boxes)
Bubble Shield x1 (On the top level on one of the two end bridges)
Power Drain x1 (In the middle level in one of the side single open boxes)
Regenerater x1 (On the top level on one of the two end bridges)

Thanks for looking at my map and please tell me what you think.