I noticed they changed a few things about SHIVs. For one, their accuracy seems strangely high. Secondly, their main weapon does more damage than the equivalent MEC weapon. SHIV doing 12 damage with laser weapons no problem. Other than that they still move super far and have huge hp.
Honestly I have no clue why I even use humans when SHIVs are currently this strong.
I made a team of only basic SHIVs and 2 MECs to try and get the achievement for all robots. It was the easiest cakewalk in my life.
Mostly because people who haven't tried SHIVs think they're slow-crawling bullet magnets that cost too much and die too easy. This is, as stated, because they haven't tried SHIVs.
Experimental warfare is in this awkward place on the tech tree. You have xeno-biology, which leads to the techs that make you win the game. Then weapon fragments and alien materials lead down the two main equipment upgrade paths. And now meld recombination and its two potential buildings are a priority too. Then you need money for your satellite rush. Its not really appealing to buy the ability to purchase a new type of soldiers, then spend money to buy their upgrades which don't apply to normal soldiers, and then buy each soldier for much more than a rookie costs, while rushing satellites.
Of course, all that logic was back when you could have 6 Colonels by the end of the third month, and SHIVs were worse than equivalent tech Colonel soldiers. If they really do move like a support and hit like a nothing-else-in-the-game, it sounds like MECs+SHIVs is going to be the mid-game win button.