Mindfire Behemoth cargo boxes - affected by Diminishing Returns

How exactly will this work?
Is it like normal diminished rewards - The faster you kill X number of npc's, the less reward you get?

Problem - Mindfires don't spawn fast enough for regular diminished rewards to work and as mindfire trains only shoot mindfires (and sometimes a few Attends), they will be able to kill them all day (as now) without hitting the diminished rewards cap.

Problem? - Does this also mean ALL npc's on BL maps will incurr diminished rewards - If so then a lot of players who don't get to do mindfires will be punished for what the trains do. I can get 4 or 5 Invoke boxes faster than a train can kill 4 mindfires - Albiet with far less rewards.
It can take 20+ Invokes to make 1 EBL cpu, yet 3 or 4 Mindfires will get you 1 and better rewards otherwise too.

Idea - Make Mindfires faction specific, each faction gets one and other factions or groups with another faction member in them, get NO rewards for killing them.

NB; I don't think diminished rewards is the answer for mindfires, please take another direction

 

when the Hellowen event started they reduced this "time to kill" drastically and reduce your rewards whatever your playing time
in 40 minutes of play my regular rewards were 3 times reduced before I caught this innovation

because at the time of this event the boss NPC`s give double rewards, I noticed that on the UBER map 4-5 for the few boss kristalons, my reward dropped below 1000 uridium in less than 10 minutes, and before that it was 1153

P.S. BP punishes not only by killing NPCs quickly and collecting resources for a while, they penalize players for playing time every 4-6 hours by reducing rewards progressively to every 4 hours playing time...

 

Status Quo remains - Trains still monopolize Mindfires And if they are getting diminished rewards - They don't seem to mind as they do it 24/7.