I don't mean to be rude, but that was far from simple.
I don't play Eve, for the record. And while I have nothing against borrowing aspects of Eve if they'll work well for Dust, I don't believe that just copy and pasting every mechanic is necessarily the way to go.

Says the person who refuses to acknowledge this thread relating to dropsuit changes.
It shows assaults are faster AND better tanked with GREATER regen ability (base stats),yet you still want to steal a slot from logis.
Protip:Check the 2nd post.

Speed and regen will be relevant in 1.8 with the adjusted TTK. A fast suit will be able to break contact and get to cover to regen. This whole topic on balancing is off track, as all of the suggested ideas are assuming game play will be exactly the same after the next patch. -á

Damage mods at the old values combined with extra mod slots is why everyone went logi in the first place. At the start of 1.8, the extra mod slots is too much still, but the assaults new bonuses will help almost even it out. After which, we do need to make all the med suits equal in H/L slots. This allows the logi to still overcome the speed, regen, and tank differences the assault has, but will never be able to attain as much of either.-á

With one less H/L slots EVEN with buffs to the stats of the logi, and the logi will have no choices in how to build their suits. All mods slots would be devoted to tank only. This would still leave us with less ehp than what is achievable by assaults, less effective regen abilities, as well as being slow moving ducks waddling around, with not enough firepower to survive. This would make this suit a novelty for the rich isk/sp players only.-á

All med suits all the core should be the same. The only differences should be the logi gets more equipment and reduced speed to the extra weight, and differences in class bonuses. This means regen, HP, stamina and H/L need to be the same across the board. They should be the same suits, with just minor modifications that allow them to perform in there specialty effectively. Assaults bonuses to their weapon and ability to carry a sidearm makes the combat superior to killing the logi, even the amar with their sidearm. The logis slower speed makes them sitting ducks, but they can put out equipment to help their team effectively.-á

A high slot with shield extender is greater than a uplink. A low slot with an armor plate is greater than a rep tool. A sidearm is greater than nanoinjector. These are reasons why we cannot count total slots of a suit, and have to treat them as just part of the specialization bonus the suit gets. The only reason to have a different slot layout would be if the were their own tree and type of suit. As it is, to try out a logi, you have to spec into the basic med. This is basically an assault suit stripped of the role bonus. This implies these are the same suits, and should be built at the core the same. This would balance the two specializations out.

I'm not against that. Honestly I was more concerned with balancing slots overall then the specific High/Low layout. But, I might add more specific layouts to flesh out the idea a bit, if I have the time.

Assaults should be the jack of all trades but master of none in my opinion. Thus it should have the slot layout to support said ideology.

Suits

Each starter fit would have a static bonus and each bonus would be different from the others in that race. That static bonus would reflect one of that race's style. Amarr bonus would be to energy weapons and armor and Caldari would be more focused on shield and ranged combat and so on. The slots can be slightly different in the starters but mostly the same


When we move to the light frames each suit would get a per level of light frame bonus. Similar slots to the starter.

Light Advanced frames would get a per level of light frame bonus and a per level of scout bonus. These bonuses would be different than the standard frame per level bonuses to give them their specialty. The standard may have 5% per level to armor mods but the advanced would have 5% to armor repairer per level and 3% reduction in armor repairer CPU. There are Two Light suits in the tree I made and both would have different bonuses given on the suit and per level of skill.

Light Prototype suits would have a static bonus and two unique bonus per level but it would come with a missing slot or a slot moved to high from low, anything to make it different to almost the point of gimping if not used within its role. Giving a suit an extra sidearm or grenade slot would be a perfect way to give a proto suit a unique feel as long as it comes with some type of drawback.

This is pretty unrelated, but it's worth saying: What happens in real life has no bearing on this game, at all. I don't care what a real world assault rifle can do. Because in Dust, we're not shooting real world assault rifles at real world infantry. We're shooting future space guns that actually fire ionized plasma bolts at mercenaries in high-tech super space Iron Man suits. Real life doesn't really mean squat.

This combined with the bonuses to weapon fitting on assaults (think about this, you want to fit your proto assault rail rifle? Easier on an assault suit) should give assault suits the role currently taken by slayer logis, i.e. assaulting stuff.