Hello all new Comodo user here 
was just wondering if anyone could help me with rules for Team Fortress 2 and Steam. I currently have Comodo FW/D+ setup using Chirons guide but unsure of which rules to add for TF2/Steam.
Cheers. :-TU
If you dont plan to run a public server on your own,
you just need to
a) allow both programs to connect outgoing only
b) more specific udp+tcp outgoing only
… or some ways to make it more specific. But if that would be really necessary, you would have to assume your program to be too unsafe for using.