Hey guy with a bigger post count.
If you want to see some games in action before you start yourself, I really recommend vassal. It's free, has an active community (you can spectate too) and unlike the 40k module, PP allows it to exist. It's no substitute for a real game, but it's very convenient for watching things in action or playing games on the fly. Titans really aren't that scary if they can't touch you. Change your pants if they do, though.