>>536549679
If you want to go full meta sweat, then stratagem wise some of the basic bitch ones that you unlock early are actually really fucking good. Eagle strafing run, EAT, MG sentry, orbital Gatling are all workhorses that work well in many situations. I like rocket sentry on the bot front. The supply backpack is also extremely strong. Meta primary weapons are things like the Eruptor/Xbow/Purifier from the democratic demolition and I think polar patriots warbond. Also, don't underestimate the default "extra padding" armor. It's deceptively good, if bland.
For a first warbond, the two that I would consider the hardest starting out are the following for the following reasons:
>Democratic detonation
It just has a lot of USEFUL stuff in it. The Eruptor and Xbow are very meta for killing things, and explosive primaries are great for closing a billion bug holes. The grenade pistol is a popular utility tool for closing bug holes when you're using a variety of non-explosive primaries. The thermite grenade is a useful anti-tank option to have in your back pocket. the Adjudicator is a powerful assault rifle, but you'll need to unlock some modifications to make it handle better.
>control group
Everything in this warbond is HOT FUCKING GARBAGE as a fucking joke. Fuck Alexus, the retarded balance lead. However there is one exception: The warp pack. The warp pack is AMAZING. Not only is it just a straight up useful mobility tool, but it also notably allows you to teleport behind the blast doors of the friendship bunkers. This will help you collect the super credits inside when your teammates are too retarded to come help open the door.
So I'd say get those two first. Either get DD because it just has more good shit in it that will make you deadlier on the battlefield faster, or get the placebo group warbond purely for the warp pack to just min-max your super credit income.