I don't know how much engrams you average per hour but heres how I farm engrams. Shocking yes. Level 24 strikes (You can even do 18/20)... You get a good team (even in pub...) and you can average a strike in 15-20 minutes. So 3-4 a hour. Now I get about 1 engram a game (top kills though?), sometimes not.. But than you get a chance at the reward. Every 1-2 games I'll get one. I played strikes for 2 hours yesterday and had like 10 engrams. What is the average rate per hour with a loot cave? I never tried it or will I, personally mindless shooting is -blam!-ing boring and for noobs. Man up, pussies.