Pretty much, since he is a sniper he may be on the field days before the rest of the team, scouting and watching troop movements and that means he would be alone. That is how The real military operates snipers a lot anyways. It also means in situations where hot extractions are needed he may be left behind if he can't get to the Evac in time. So he would have to move to a secondary LZ that is further away and await extraction