Crouching at different heights

Just a heads up guys when crouching near short objects suck as windows os short walls , if you lean up against the wall u can actually stick your head just enough for you to get easy kills and make it harder for the enemy to get you . If you are still to short and u cant see over try moving forward as well.

Id like to add to that,

if you can see over an object whilst standing, but cannot whilst crouching; stand up against the wall crouch, then repeatedly release and press the crouch button. If you time your shots right you should be able to shoot over the wall without the server recognising that you have stood up therefore the enemy never sees you standup. Give it a go and tell me what you think.

nice man i never knew that thanks

This is when you align ur body to an edge of a wall
(im a pro at it even ask black lol)
Ill show u in game if u want to know how to do it

Isnt that shoulder peeking? (aka glitching) since you shoot through the object?.. or am i thinking of something else lol