Arma III keys cheatsheet

Basic movement and interaction

Effect	How
Lower and raise weapon	`CTRL` x2
Sprint	Hold `⇧ Shift`
Crouch	`X`
Prone	`Z`
While weapon lowered, reduce to speed level 2	`C` x2
While weapon lowered, reduce to speed level 1	`CTRL`+`C`
ACE interaction	`⊞ Win`
Self ACE interaction	`CTRL`+`⊞ Win`
ACE medical menu (self and others^[1])	`H`
Night vision	`N`
Free look	`ALT`
Lock/Unlock free look	`ALT` x2
Put away all weapons	`0`
Switch to 3rd person (if enabled)	`NumPad Enter`
Switch gun alignment (left or right)	`CTRL`+`A` and `CTRL`+`D`
Lean	`Q` and `E`
Point	`⇧ Shift`+`
Eat and drink	Self ACE interaction

Effect	How
Keep weapon raised while moving (and vice versa)	`C` x2
While weapon raised, change movement speed	`CTRL`+`C`

Effect	How
Immediately throw current active grenade^[2]	`G` x2
Grenade throwing interface	`⇧ Shift`+`G`
Change grenade	`⇧ Shift`+`G` (repeat as needed)
Change fire mode	`F`

↑ For others, press H while near them and looking at them
↑ Some seasoned members advise unbinding this and using the grenade interface only. It is too easy to mess up a throw and harm friendly forces using this method.
↑ ^3.0 ^3.1 ^3.2 Changing radio volume, what ear it's in, the channel block, and what channel a radio is on is done via ACE self-interact (CTRL+⊞ Win)