Randomize Vandenberg Jock Exit locations

[theastropath]

Jock (and Tracer Tong) could be randomized to a few locations outside of Vandenberg.

Potential locations:

• Vanilla Front Gate
• Right out front of command (in the big central yard)
• Comm building rooftop
• Command roof (Maybe down the slope over the flooded lab so it isn't right where you land in vanilla?)
• Top of the tower where the snipers are behind command
• Inside the big main hall of the command building (The hall that has the elevator and the door into the computer room)

[Die4Ever]

make sure to remove Tong's fears when we do this

[Die4Ever]

oh this one is complicated because DXRBacktracking destroys and recreates the helicopter so you can reuse it