Splitting up premade and casual is bad, there wouldn't be enough people in premade queues to start a match. The majority of players are casual who play for the daily exp roulette or to get an achievement, they don't play to tryhard PvP. If you want to kill premades completely that is the way. (After removing GC allegiance, 8man premades, adding forced freelancer - it would be the final nail in the coffin of any premade PvP mode you could play with your friends). A solution would be to implement 24 mode back, making it solo only, or premade only - but the biggest thing the devs seem to be concerned about are the perceived active state of PvP - no matter how good or bad the gameplay is - "people play it - so it must be good?!". In the past the bigger problem was to even get a single 24players match after queueing 1hr during prime time. So that concern was valid to some degree.
The other issue I saw here was BattleHigh. What I see in frontline matches is that a premade tries to hide around a corner, pop out with salted earth and directly LB+AoE. In old frontline this was preventable as you saw BattleHigh5 targets on the map and minimap. If you ask me this should come back, the same way killing these targets should net you more points than just 5.
But in the end these will be bandaids. CC and FL don't really work well together with the same skillset, as is made obvious by a few annoying abilities that have a lot of impact in fl, but are more useless in CC. For a better PvP mode we would need skill customization or different sets of skilltrees. I don't think unlimited sprint and so much selfheal is needed in frontline. Maybe DutyActions in PvP should get a usage for more uniqueness in frontline, similar how Criterion Dungeons have them.
Btw the Field Commander coat is still not dyeable, maybe a NPC to exchange/upgrade it? Shatter is a boring PvE map. Borderlands Ruins and Astragalos are forgotten, it feels abandoned. Hidden Gorge is not incentivized. The only good maps to play on is Onsal and to a degree Seal Rock. Maps with Z-Axis were either taken out or revamped - instead to fix 1 ability of DRK that uses height to kill opponents by fall dmg... Just to grasp that thought process...
Players want more regular adjustments, they don't want to wait 1 addon for something to happen, only for it to restart from scratch another time. The feedback is often good, instead of polishing a system why revamp it again every addon? Because of new max lvl skills that are forced into it? Then add more skills overall, so it doesn't impact the existing gameplay as much.