How are the rewards for Warzone Firefight determined?

Warzone Firefight is a co-operative game mode where you kill a lot of AI baddies while using reqs like a traditional Warzone game. I've played several games in this new mode, and it's quite fun.
My question stems from the fact that I've received significantly different rewards from my several games. I've received anywhere from 4(!) gold(!!) req packs after a match to... nothing.
My initial thought was that a player's ending score influenced the rewards they got, perhaps combined with whether their team succeeded or not... but my recent game saw my team wining and me racking up a whopping 37k points to receive no rewards whatsoever.
How are these rewards determined?
Best Answer
Warzone firefight commendations now award gold packs. There is also a bonus system for victories.
1st win: 1 gold pack 5th win: 3 gold packs 10th win: 5 gold packs
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How do you get a warzone firefight Gold Pack?
You can now earn these packs by winning multiple rounds of Warzone Firefight, in which eight Spartans attempt to survive ten rounds of increasingly difficult enemies and objectives. There are also two new commendations for Warzone Firefight, which you can find detailed below.What is Mythic warzone firefight?
There are three variants of Warzone Firefight: Heroic, Legendary, and Mythic (which is not always available), each facing enemies and bosses tuned to said difficulty level; Mythic enemies are Legendary enemies, except faced in much greater numbers, along with skulls added in to make things more difficult.How many warzone Firefight maps are there?
Complete a Warzone Firefight match on 6 unique maps. In order to obtain this achievement, you will need to play Warzone Firefight and complete a match on all six available maps, win or lose. However, for "Not Your First Rodeo," you must obtain five wins total.TOP 5 Warzone FIREFIGHT TIPS! How to get to 152 Before Infinite!
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Answer 2
You get rewards in Warzone Firefight when unlocking commendations like @two bugs pointed. In addition to getting packs from winning firefight matches you get them also from killing prometheans, covenants and bosses separately.
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