I think the system should work like this. The first sacrificial clone should take a 15% cut of all clones biomassed by the harvester (again pending that this player's team hold's the harvester at the end of the match). If another player has to harvest themselves to change ownership of the harvester, both players now share a 7.5% cut of biomass sales. Each further player sacrifice reduces the biomass sacrifice bonus by half. This system encourages more end of match offensives on collection nodes in order to keep individual player bonuses high.

A problem I see it stupid militia fit blueberries eating up clone reinforcements by constantly throwing themselves at the sphere.

I got the impression that if a single player is the team's sole Dyson sacrifice that they would still receive the 15% bonus no mater how many times they entered the spheres. If that works in the context of having to share a sacrifice bonus with other team members who harvest themselves, the lowest your bonus would be is 1/16th of the 15%. Even that example of 35 clones perishing within range of the harvester would net a player about 52,000 isk if all members of team harvested themselves at one point during the game.

Remember, any death, even sphere suicides add to the biomass capacity of a harvester. More deaths around them equate to a more valuable harvester at the time of match extraction.

That adds an interesting bit of strategy to the mix. I know it would certainly make the end of match moments more intense. Players would have to weigh the choices of 1.) do I use a suit to get an additional cut of the harvest, 2.) when do I go about harvesting myself if I only have one opportunity to do so.

In consideration of choice two, if you expend yourself too early in the match you may run the risk of being unable to counter hack the sphere it the opposing team mounts a zerg rush of the spheres in the final moments of the match.

I can alredy see the feed:
"daaoaod suicides... x 50"

How are we gonna prevent people from suiciding to make the thing more valuable? I think suicides shouldnt count towards the biomass rewards

I'd actually be interested in seeing foot solider couriers added into that mix. It would be similar to the Mass Effect Multiplayer retrieval objectives. A merc picks up a vat and it highly diminishes their walking and running speed. Vehicles would most likely be needed to assist mercs in travel time.

Object Retrieval Objective

I would also argue for some type of HUD notification to identify when clone containers are on the move.

Clones are not stored within the harvester themselves. Clones are either diverted to the MCC or if a transport container courier is within range (5m) then the clones are diverted there.

What I love about your idea is the radiation period tied to a hacked harvester. What I would love to see from that is an initial high intensity gamma burst of about 450hp damage that fires out about 10m from a harvester once a hack is complete. There would be an audible rising tone signal that lets players know in the immediate area of a harvester when a suicide hack is about to complete. Opposing players and friendly teammates have the indication to abandon the area or stay and fight. However, in doing so they are likely going to die from the blast and fallout (this fallout damage being equivalent to ~50hp/s damage in the 15m radius zone).

What works about that scenario is you can have a friendly high EHP tanked suit holding the transport container next to harvester scooping up players that die from the gamma burst and the immediate fallout. The reason this tanked suit has the ability to survive the fallout is with the help of a long beam repair tool person on the periphery of the fallout zone healing the courier of most radiation damage.