I’ve edited some earlier parts of the post to hopefully clean up and improve.
On H & H -
Chaotic Power Couple is great on the side of Mira’s units. The mag mines effect is useful but (maybe against expectation) not very. Overall I almost want to change or add something, but I’m not really sure what. It’s possible the issue just comes from my take on the description.
Wing Commanders is excellent. It’s fun and different and fulfills something I already wanted, and it feels about on par with the commander’s existing balance. My only recommendation here is play it!
Gunrunners defied expectations in the opposite direction from the mines effect. I commented elsewhere I thought it wasn’t practical, and it seems like it actually is. I think I’d still prefer a cooldown cut under the existing cap, tho. It could have a lower ceiling but ramp up a bit faster without, I think, being too fast. Or, a further-specific way to do it would be scaling the cooldown reduction to start low and increase with the number of platforms up to the cap.
Overall I think H & H looks good!