WASD for life!
Asking people for their key config actually can help to define key combos.
My keys are:
Movement
WASD: Forward, Left, Backward, Right
QE: Lean left/right
X: Jump
Z (german Y): Ingame Menu
Space: Movement toggle
Left Shift: Crouch
Left Control: Sprint
Alt: Prone
Interaction
F: Use
Combat
Left Mouse: Fire
Right Mouse: Aim
Middle Mouse: Change ROF
G: Attachment
R: Reload
T: Throw weapon
Y (german Z): Throw ammo
Weapons & Equipment
O: Nigh vision goggles
Left Bracket (ß): Binoculars
Right Bracket (´): Switchweapon 1 (knife/grenades/binoculars/other stuff toggle)
Key 0: SwitchWeapon 10
--
Key 1: Knife only
Key 2: Grenade Classes
Wheel Up: Priority Weapon (primary selection)
Wheel Down: Sidegun (pistol)
--
Key 3: SwitchWeapon 3 (shotguns)
Key 4: SwitchWeapon 4 (smg's)
Key 5: SwitchWeapon 5 (rifles)
Key 6: SwitchWeapon 6 (sniper rifles)
Key 7: SwitchWeapon 7 (don't remember)
Key 8: SwitchWeapon 8 (don't remember)
Key 9: SwitchWeapon 9 (don't remember)
Communication
C: Roger that.
V: Clear.
B: Fall back.
N: Need backup.
M: Cease Fire! Cease Fire!
Comma (,): Hold Fire.
Period (.): Area secured.
Minus (-): Negative.
-
H: Contact.
J: Tango down.
K: Man down!
-
Equals (+): Up.
SingleQuote (Ä): Down.
Semicolon (Ü): Left.
Slash (#): Right.
---
Insert (Einfg): Cover me.
Delete (Entf): I cover you.
Home (Pos1): I'm going in.
End (Ende): Get out, get out!
PageUp (Bild hoch): Wait.
PageDown (Bild runter) Ok.
---
Up: Go!
Down: Hold up.
Left: Defend the position.
Right: Take em down!
---
NumPad1: SOUTH-WEST
NumPad2: SOUTH
NumPad3: SOUTH-EAST
NumPad4: WEST
NumPad5: Regroup.
NumPad6: EAST
NumPad7: NORTH-WEST
NumPad8: NORTH
NumPad9: NORTH-EAST
GreyMinus (-): Report in.
GreySlash (/): In position.
GreyStar (*): Ready?
NumPad0 (Einfg): Covering...
NumPadPeriod (,): Moving...
---
Coop related;
F7: InventoryPrevious
F8: InventoryNext
---
Yet free keys;
U
I
P
Tilde: (Ö)
That's it