New Player! Looking for a primary recommendation.

I'm currently level 14 and I'm ADDICTED to the game. I have a lot to learn but I'm unsure on what primary weapons to choose from. (I normally slay terminoids, I've not gone against bots yet)

Primary, I've been using the SG-8 Punisher and I love it! Truthfully, I prefer it over the LAS-16 Sickle.

I finally have enough warbonds to get SG-225 Breaker or the SG-225IE Breaker Incendiary.

Please give me your opinions! I'm also open to other recommendations (loadouts, strategems I should unlock, etc).

Loadout I currently use vs bugs:

Primary: SG-8 Punisher

Secondary: Redeemer

Stalwart, Eagle Airstrike, Mortar Sentry, "Guard Dog" Rover (whenever I feel like letting it kill me)/Jump Pack.