for winning both the tier rank and the entire class last weekend, the reward was 2500 diamonds for winning and 10 IPs + 1 Spec Ops tier 3 training module..  of course the tier rewards adds to this, but for all the effort put in to win the whole shabang I was dumbfounded to find the rewards so..  pathetically small and not worth it.. it was in one of the low classes, but still..  So I'm kinda waiting for all the goodies you mention

Hello, guys. As far as I know, devs are planning to launch that tourney on a regular basis. We've got a lot of positive feedback regarding the Combine Conflict event so you can continue to participate in it and get valuable rewards :)