[Payload] Desert Dazzle A2

Updated pl_desert_dazzle:

• Added underpass to the bridge.
• Added flank route to last.
• Added small building on last.
• Rebuilt RED's spawn so that it can't be entered.
• Rebuilt BLU's spawn to be less easily camped.
• Added small buildings around the second point.

Notes:

This took me so long to make because I was constantly going places this summer. Also, CompilePal decided to not compile several times... not to mention I got sidetracked with other map concepts for Back to Basics.

Thanks, and enjoy the map.

Here's what's new!

- Fixed the Frontline assets.