PVS-22 or 26 are the only night optics with much application for sniper work. Outside of those two, you might as well use a 200mZ on your LA-5 and your PVS-14 or PVS-15 on your helmet.
I don't try too hard to use a sniper rifle at night. If I absolutely have to make long shots at night (500-800m) and a machine gun is out of the question, I'd go with the Mk13 (M2010 for you)and a PVS-26. But my go to night set up would be a 240 with the LA-5 zeroed at 20om for 300m and in, and PAS-13D mounted for anything beyond that out to 1,000m.
At night, you can get a lot closer as long as you are quiet- the one weapon you should always have with you (no matter what sniper rifle you are carrying) is an M4 with 200mZ laser and PVS-14 or 15 mounted.
Don't sweat it if aren't issued night optics for your sniper rifles- machine guns are your best bet, especially at night.