I have found something that I thought might be worth sharing…
Problem with multiple XBox consoles behind same router as Microsoft only allows 1 TCP/UDP port, i.e. 3074
But seems like Activision (Call of Duty) is allowing more ports within the game itself, and you can use more ports for multiple XBox consoles behind same router, i.e. 3075 for 2nd console, 3076 for 3rd, etc.
I don’t have XBox, but doesn’t it simply work with UPnP?
Don’t know, I use XBox for streaming 
and only have 1, not a gamer at all myself.
But seen many people posting here asking help as they have multiple consoles behind router, thought it might help.
As it is an in game thing from Activision, should work even for PS consoles
UPnP is security wise a terrible solution.
Though I really like the info…what is the reason for opening a topic on this subject on a MikroTik forum?
UPnP allows devices in LAN to dynamically configure port forwarding. There’s not much security, any device in LAN can do that (although it should be possible to limit it using firewall filter) and forward ports to any other device. So it’s not best idea to have untrusted devices in LAN and let them use UPnP. On the other hand, same untrusted device can as well connect to some outside server controlled by attackers and they will gain access to your LAN through that. People who UPnP is for don’t block outgoing connections, so there’s not much difference.
In my previous post I explained there has been a couple of questions on the multipli consoles and port forwarding to each and no solutions