Last night my corp had an ideal system for running sites. It was a connected C4 system packed with anoms, many of which are the best type, and totally zipped up. We exploited it to the max. So, how much does it pay, running C4 sites?
We have found that a typical C4 anom will earn about 100m ISK in salvage and blue loot. There is a lot of variance, because about half of the value is the salvage and it has a strong element of chance. There is really only one salvage part that is worth much: melted nanoribbons. If you get lucky on melted nanoribbons, you get more than average. C4 radar and data sites are considerably harder sites, and they earn more. Perhaps 120m average in blue loot and salvage. You can also get perhaps 60m from can-cracking in relic sites, which is worth doing. The minigames for C4 data/relic sites are the hardest ones in the game, so their earning rate is not great without maximum skills. Data site cans are not worth it, although with a cargo scanner you can probably select only the relatively high value cans and earn a decent rate on a few cans.
Last night we completed 13 combat anoms, and another 2 radar sites. So we would expect to earn about 1.5 billion, and we did.
How long did this take? We started right at 8:00 with three of us. Hiljah joined about 9:15. We ended some time around 11:30; perhaps 11:15.
Using 11:30 for a conservative estimate, three of us spent 3.5 hours each. Hiljah, 2.25 hours. Four players; what did we earn per player? We earned about 117m per man-hour. What did we get per-character? We used nine characters: two logis, one salvager, one fleet booster, and five DPS. Thus,we earned 52m per character-hour.
There was some inefficiency in our setup. Our salvager was not busy 100% of the time. Adding DPS would increase his rate of earning a bit by keeping him busy more of the time. And of course the logistics have very little DPS. So, by adding a few more DPS characters we might get a moderate improvement. (In fact we left one radar site untouched for lack of time.)