My STEAM setup

Create a group called steam
TCP = 27015 SRCDS Rcon port
UDP = 27000:27015 Game client traffic
UDP = 28960 Multiplayer
TCP = 27014:27050 Steam downloads
UDP = 4380 Steam downloads1
UDP = 27015:27030 Typically Matchmaking and HLTV
Other ports I did not include because it says for "Outbound"
I assume I do not need these since all outbound is allowed "I could be wrong"
if so please let me know.


DNAT
For traffic from:Any
Using service: "I created a group called STEAM"
Going to:External WAN Address
Change the destination to:My computer IP Address"Created Host=192.168.1.?
And the service to: "Empty"
Automatic Firewall rule = Not Checked
Log initial packets = Checked

I then created a firewall rule
Sources:Internal Network
Services:Group called "STEAM"
Destinations:Any
Log traffic: = Checked

I do not know if the Firewall rule was needed but All I do know is it is working.