Do you have a downed addon already? This could probably be made with Swollow's Server_Downed thingamajig, you could likely just add a Tied Up playertype that can't move at all and doesn't have the life drain and make it change them to that rather than the saved playertype if the rescuing player is crouching. I can take a look at this tomorrow but I'm not sure if it'll work like I expect and if it doesn't I might not be able to do it
