|You must capture all the HVTs alive. See "And Justice For All" for more details. If you're going for it, be sure to save right before and after capturing each HVT. Save on more then 1 file just in case if you're paranoid. Be sure to quit and reload if one dies. This must be done on 1 playthru.|
The best way to have the HVT to not get shot by friendly fire is to deal with everyone before you go near him. Especially for Bianco, be sure you kill everyone before going into his room. If you are carrying the HVT he can not die. This is a useful strategy for co-op, finding a safe area, or running away to find a better landing zone. I abused this in co-op by rushing in, capturing the HVT, and running up a hill to find a safe zone for the chopper to land.
Sadly this will not unlock for you're co-op partner. Thanks to Hawk199 for the picture and achievement info.