I thought you were in an upper floor or something. As for the caliber, basically the average for the Sniper Rifle. Also, Cedric's position is 50 Meters away.

I didn't know that Ruby killed the lights.

So, if you guys are in a basement, what should my character do, then? The essence of my post assumed you were out in the open; if you guys aren't, then Cedric is basically useless.