I'm kinda lucky, in that my workplace has an XBox one so I can get a couple of games during my lunch break depending on how well I do.
Even to the point of having extra 20min's once because I was top 10.
Little hint for Xbox users, if you have the holo lense fitted, press LB (Holds your breath (ingame that is)) and you get an extra bit of zoom. Handy for getting the drop on someone 50m +
Red dot sight, if its too bright. Bring up your sights and then hold RB and move the left stick up and down to adjust the brightness.
While running or stationary, holding the RB allows you to look around in TPP.