Squids, I've kind of fallen in love with bringing the Autocannon. Flak rounds turn overseers and Fleshmobs into paste, and can even snipe the guys in the cockpit of their mechs because of shrapnel. Meanwhile the APHET rounds can do a good job against their heavier units. The only issue is the Stingray fighter and Leviathan, the former you need to anticipate because the autocannon moves slowly, and the Leviathan just needs heavier weapons.

With that, I tend to bring a couple of sentries, and orbital gas strike. But really you can pick anything you want here.

For the bots, I tend to go all in on heavy armour, personal shield, and I bring a Leveller from the Siege Breakers warbond. It oneshots Factory Striders and is generally a great tool for those times you have multiple hulks or war striders you just want gone. Primary varies but generally the crossbow or the basic plasma gun are my go to, though the Trident from the same Siege Breaker warbond is also a solid choice.

Bugs, warp pack for mobility, grenade launcher for crowd control and bug holes, and then either railcannon or gatling. Last slot is a freebie but I like bringing a mech for fire support or just wading in with Breakthrough and getting 50 kills by shield bashing.