To get this chopper you must have completed Diaz's missions. When your on the new side of vice city, go past the greasy chopper where the bikers bikes are. When you get to the turn to Prawn Island, take the shortcut to the highway and stop look up on the top of that building and if you see 2 sattilite dishes this is the building. Go to the same wall you are lookin at and look for an entrance this will bring u to the helipad. When you are at the top floor, look for a ramp, and go up it and might see a VCN maverick. Note: This chopper isn't always there but mostly there, and this chopper is exteremly funky it has too good of handling.