IMO, the Gal Assault actually represents what the assault role should be.
I've never even used a GalAss, but I know the basics of fitting it, it's not some enigmatic trade secret:
Highs:
Shield Extenders and Damage Mods w/ a bias towards damage
Weapons
BuAR/TAR/ARR
BrScP/IP/BP
Lows:
Some combination of Reps and Ferroscales or Ferroscales and Reactives
Equipment:
Nanohives/Scanner
It has:
- Enough tank to take some damage
- Good reps to eliminate any significant down time
- Excellent damage dealing potential in its optimal (CQC w/ sparse cover for Gal w/ AR)
- Can still perform outside of its primary circumstances (can kill at range and can kill in dense CQC)
- Not fast, but still mobile
It's an all-around balanced suit, fit to utilize its weapon and damage type, and is good at dealing damage in a variety of situations. The varying racial assault suits should have a similar model, with shifting weight towards different areas. The other assault suits have issues due to breaking this model:
The Minmatar Assault gets ridiculous mobility, while still maintaining decent HP, decent regen, and multiple optimal areas of engagement.
The Amarr can dominate at almost any range, it can deal massive damage, but it is barely more mobile than a Commando or even a Sentinel, has much less HP, and can't regen well.
The Caldari is close to being a differently weighted model of the Gallente, but it gets a mediocre weapon bonus and isn't quite mobile enough for its tanking ability.
The solution:
TTK needs to be higher. Having a larger possible distribution of survivability and killing potential would open up a much needed niche for the Assault class. Currently, the Minmatar dominates because anything under 1000eHP gets wrecked in very little time, so the only solution is to GTFO faster than the other guy. Assaults were made to fill a niche of infantry with the tank to post up, bonuses and slots to deliver high damage, and enough mobility to move on to the next objective. Currently, they can't do that, because the TTK is too low for anything other than a Sentinel to stand and deliver. Instead of moving from post to post, they have to resort to Scout ganking tactics, just with a bit more HP and a bit less mobility, which the Minmatar is the best at.