I think some things can be done to make the Soldier a little better. Maybe giving them an extra die on damage for the Area effect attack, similar to how they changed the base damage of spells from 1 die plus attribute to 2 dice. Additionally, the ranges for Auto fire seem much more restrictive than area effect. I think the Bombard is a very well balanced subclass, suppress on everything but Crit success and avoid 1/2 Con friendly targets. In contrast, I don't think the other options for the Soldier seem as developed. I, myself, built a Bombard Soldier and am looking forward to playing it but I ran the two Scenario's for the Playtest and all the people playing Soldiers chose other options, Action Hero and Close Quarter Combatant. I feel that the Soldier, which I like, doesn't play the way the other people want it to. Both my players normally play fighters in PF2E and I think they are comparing the Soldier unfavorably. In the Long term, after the playtest, if that is what you are looking for you should just use a Fighter with "Starfinder" Equipment.