I inserted the code:

Into the end of kyle.cog's killed section, and it takes away the blue key whenever the player is killed. Problem is, it only activates the console when the host has the key. Both people can pick up and lose the key, but only host can use it. What's up with that?

Actually, to word that a little better The players can only use their keys when the host has a key. I'm not sure where to start or what to place in the code, or whether to even start with the kyle.cog, or if it's in the cog for the gate that the key opens. I've managed to get the key to disappear from the player's bin when he/she dies, but I don't know that much about cog. I'm sure someone else knows though.