Here it is get ready:

Key Function

W - Run forward
S - Move backwards
A - Sidestep left
D - Sidestep right
Space bar - Jump
Control (ctrl) - Crouch
Ctrl + W - Crouching run
Q - Prone
Q + W - Crawl
Shift + W - Walk

E - Use item
Mouse wheel up - Next weapon/item
Mouse wheel down - Previous weapon/item
Left mouse button - Weapon primary attack
Right mose button - Weapon secondary attack
R - Reload weapon

F1 - Voice commands menu
F2 - Voice responce menu
Global chat - Y
Team chat - T

There we go. I've probably missed a few unnecessary things out. A few notes:

The "crouch" and "crouching run" functions are like the ones in Hidden and Dangerous, not like DoD.
The use function is for opening doors etc.
Where I've put "weapon primary attack" it's also for items.
The secondary attack modes are things like hitting with weapon, bayonet, or throwing your helmet at someone.
About the helmet thing. It should be a weapon but when you use it it makes you more vulnerable.
The primary attack for helmet could be hit and secondary as throw.
The canteen could also be an item which you drink from to increase your energy (nice idea Ballistic Wookie).
That's about it.
I hope 2015 comment on this.
I think they would be the best default controls.

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Caparzo