Getting Ready for My First Game...

Getting ready for my first game and its going to be a combat patrol game. I found this set of Tristraen's rules - is this the right one to use? I ask because it doesn't seem to utilize all of the models in the box and makes you choose btwn the Wardens and Allarus Custodians?

I'll be playing against the Black Templars combat patrol and it feels like they are bringing a ton of units in comparison (plus a transport). Am I missing something? Thanks!