Can anyone recommend me any good games along the style of XCOM and Silent Storm? The sort of small squad control strategy shooty games?
The games I have and have played until I got bored of them are XCOM (all of the original ones from the 90's), XCOM EW, XCOM2, Silent Storm, the three UFO games (aftershock, aftermath and the third one) and UFO Alien Invasion. Also that cold ware thing with spies, but I don't like that one. Any other suggestions? Old games are fine as long as I can get them to run.
I don't have any specific recommendations, but I can name three games you should look into.
Phoenix Point was something I had one eye on while it was under development, but the reviews have kept me from buying it. Glancing at the Metacritic page, the
positive reviews say things like, "Rough around the edges"; "It has some flaws, but it's a solid first entry"; "if you've spent hundreds of hours with XCOM and you've had enough of the series, you might notice the small differences"; and "a good vision of the XCOM-style turn strategy weighed down by its structure and low intensity in the fighting." I mean, Jesus, if those are the people who
liked the game...

Anyway, this was only released a month ago, so maybe it just needs more time in the oven.
I got
Shadow Tactics: Blades of the Shogun just because it was free, but I haven't tried it yet. I got bored with Feudal Japan as a story setting about 30 years ago, so I'm not in any rush to play this one, but it's gotten very good reviews, and it's 3-4 years old, which means it should be a finished product but not yet showing signs of age (it came out the same year as XCOM 2, for comparison).
Battletech is a game I couldn't get into, but not because I thought it was bad. It just didn't click with me, for some reason. I found the color palette was very bland, and like Sengoku Jidai, the giant robot genre isn't one that inherently grabs me by the neck anymore. It looks like a good adaptation of a tabletop game I played a lot in, like, 1985. *shrug* On the bright side, it came out in 2018 and has had one or two DLCs, so it ought to be a fairly complete, polished game by now.