Need help, gotta kill Elias! :)

[Blacky]

Ok, IÂ'm making a mission (maybe campaing) that mixes the Platoon and We were soldiers.  My problem is to make the scene in Platoon, where Elias is chased by VCÂ's. I was wondering is there any way to make Elias falling on his knees and stay like that couple seconds and then fall to the ground.  Like in this photo right here: http://www.destgulch.com/images/plat06.jpg

[Blacky]

I solved it.