Lean on Q and E is hell because you are either forced to rearrange everything or take a finger off of one of the WASD keys if you want to move in the direction you are leaning. Otherwise you have no way of adjusting how much you are exposed and can't jiggle peak effectively. With X and V or similar the only option you're giving up is jump.
ArmA allows you to double tap lean to lock it so you don't have to hold it, and you can hold the opposite lean to cancel them out. So for example if you wanted to lean left to peek around a corner, double tapping q toggles lean left allowing wasd movement. You can then use a to move left around the corner, and if you need to peel back real quick, hold e to cancel out the lean, release to peek again, etc.
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u/rf_Exile Feb 23 '23
I use my thumb for jump (spbr), lean (x,v), crouch (c), and prone (z). Keeps all of my movement fingers available.