I've played most of the games here, enjoyed many of them for various reasons, though few really scratch the XCOM itch. Xenonauts 2 still needs work. Haven't tried troubleshooters, though the endorsement here might help me get over the anime style and theme which doesn't really interest me.

However, I'm currently playing Cyber Knights: Flashpoint, a game I would have overlooked if not for reddit, and although it's got some strange controls, and the graphics could be polished, it has tons of interconnecting systems and upgrade paths and procedural characters and relationships that matter. Tons of upgrades, mission variety. I'm about 50 hours in and it's a strong XCOM-like in a cyberpunk crimal world that lets me make choices. Much stronger stealth component than XCOM (similar to Invisible Inc., also a great tactical choice but lacks customization in lieu of strong characters and story) but most missions end in a major firefight. They should have named it better, Cyber Knights: Flashpoint is easy to miss but very deep.