Most all keybinds listed below can be changed, these are the default values. Certain actions / options below may require certain mods (e.g ACE).
Basic movement and interaction
Options available using ACE self-interact.
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
H
Night vision
N
Free look
ALT
Lock/Unlock free look
ALT x2
Eat and drink
Self ACE interaction
Assault movement
The fire mode indicator (grey and white horizontal bars beneath letters MX), the walking speed indicator (the three arrow heads pointing left), and the stance indicator (image of a white rifleman).