Well, are we gonna try to blend in and look semi natural or are we gonna flaunt that we are contractors. If the first one, then I agree a chevy 2500. But if the last one, I vote for a black Oshkosh humvee with a mounted m2.
What about a car like the AM General HMMWV Landrock from Tom Clancy's Ghost Recon: Wildlands? It has a mounted weapon and doesn't look too out of place.
Ok, so now I have more questions. What's the state of NSS? Are we the only four operators under their employment? Or is it a large corporation with a skyscraper building in a major city?
NSS currently has 6 Trident teams deployed in Syria, Yemen, Somalia and Afghanistan. The assets we have access to include inconspicuous ground vehicles, equally inconspicuous helicopters and very limited access to CIA assets, mainly Predator drones. The assets acquired is done by the CEO, who is very focused on practicality and efficiency, and a Lamborghini, while it may have been practical, would not be very efficient. So NSS doesn't find a need to spend that kind of money on something that will eventually cost the company a lot of money in maintenance cost in the long run, so the company is not concerned with that sort of thing.
But we might find our way into some G-Wagons at some point in the future.