One thing that would be nice would being able to recon missions ahead of time so you know layout and rough enemy comp. Some setups where you can use environment kills are super powerful while being complete duds without said environment kills, some setups favor aoe clear, etc etc, good against droidekas, good against coil. Just tons of prep you could do if you knew what you were getting into.
Almost like the RNG is selecting your setup before you go. Although tbf I haven't run into a mission that couldn't be won due to setup so far.
Right now rocking 2 snipers with overwatch talents, the mando, a couple scouts to farm adv and just use mando going around doing tons of damage. 4th slot is flex but ususally run jai for execute but really anyone could work here. Honestly might just put another overwatch character here, like make trick soldier/scout and have him clear aoe.