UPnP and Call of Duty

[dokuhebi]

Yes, Activision is annoying, but I'm still not sure what I'm doing wrong.  I installed the UPnP plug to allow my son to play Call of Duty, and it seems to be properly configured.  The plugin is enabled and configured with the defaults, with the WAN and LAN properly applied to their respective interfaces.  When he starts the game, I can see the 3075 port enabled under the UPnP status, but when I look in the firewall logs, I see a bunch of blocked connections from an external internet address to my external WAN address due to the "Default Deny Rule"

Could someone help me figure out what I'm missing?

Screenshot of the log below.

[LouieLouie]

It looks like udp port 34133 is falling all the way through your 'Allow' and hitting the 'Deny'.  To me, that means you don't have an explicit 'Allow:  UDP 34133 outbound on WAN', destination = (your choice... either inverse from your wans/lans, or 'all', or your preference).  When you write the rule, remember to move it up the list so that it is above the default deny.