They will constantly attempt to open the door, trying to get back to your side, causing a message that says "Room Must Be Pressurized" to pop up every few seconds (or more frequently).
This can only be fixed if you have the Unofficial Fallout 3 Patch mod for PC installed, or if you have an Xbox 360 or PS3.The winterized combat armor will have the same stats as General Chase's overcoat.
The cannon in the looting screen is at full health but when taken the health is less.