>Give Vincent verbal directions towards their transport as necessary and keep a close eye on, well, the general direction that the group of locals went in. Charge a Con bonus juuust in case.
Make sure I'm not too heavily covered with snow to move quickly in a short while; push some snow off myself if I need to.
>Shove the snow off of myself and, once Vincent is a good way ahead of me whilst still remaining in sight, get up and move up along with him, keeping a safe distance which allows me to properly cover him with my rifle.
If/when either strangers come in sight or Vincent begins enacting his plan at the vehicle, drop to my belly in the snow, brace my rifle and charge a con bonus, ready to provide covering fire if it becomes absolutely necessary. If his plan goes off without a hitch (yeah right) and we gain control of the vehicle, move my carcass over there and get in as quickly as possible, unless there are hostiles in sight.
"If we're going to make a move- as opposed to just hiding until our visitors hopefully get fed up and decide to go away- I would recommend that all of you get yourselves as ready as possible to run... or at least hobble quickly in the direction of a vehicle. I'll..."
He thinks for a moment, screwing up his face in a wince as he probes at his injured side with his good hand.
"I will probably remain in position for now; hopefully I'll be able to provide covering fire if necessary. Wish I'd thought to bring along some of those bloody cam-eyes. Not sure at what pace I'll be able to move, given my terrible injuries, so please try not to leave without me."
Jobasio looks nervously down to what he can see of his blue rifle and pink cast through the snow. He turns off his helmet's microphone.
"This could get rather messy, you two. Let's try and keep our wits about ourselves, whatever happens, hmm? I'll get you both through this."
Having comforted himself by talking to his imaginary friends, he returns his attention to the snowy wastes before him with narrowed eyes.