INIT field of soldier goes: this setunitpos "UP"
And then simply make a WP and slide it VERY close to him.
The "On Activ." field of that WP goes like:
unitName switchmove "crouch"
And set the behaviour of the WP to "combat"
If he got any handgrenades, then his INIT field should
also contain:
this removemagazines "Handgrenade"
'coz he will stand up when throwing 'em