PC Gamer checked out BattleTech Flashpoint:

Flashpoint is a brilliant addition to BattleTech's late game

But really it's all about that axe.

There are a lot of different ways to build a lance in BattleTech, especially now that the Flashpoint expansion has introduced three new types of mech. You might want a bunch of gunners that can take out the opposing team from afar, or you could throw in some light mechs to outmanoeuvre them, but I keep going for the classic Rock ‘Em Sock ‘Em Robots tactic: punch everything until it explodes. I feel very well catered for, then, because now I can fling a mech with a giant axe into these heavy metal brawls.

My big, sweet Hatchetman is the most beloved of all my mechs. He's large, of course (though technically he's medium, according to his classification), and he's rather deft at hitting things, specifically with a big robo-axe. Look at him go!

[...]

While the stories that play out during the flashpoints are self-contained, they contribute to a more cohesive galaxy. There’s more going on now, with more meaningful conflicts between factions. Rather than just being the weapon they use to win, you get to have a say in the outcome, nudging the story down one path or another. And they contribute to a tone—that free-wheeling mercenary life—that just fits so well with the BattleTech universe. Each is a full adventure that you can enjoy in one sitting, and then you’re off to the next one, or maybe some other kind of job. It’s almost episodic, not in the style of an episodic game, per se, but at least evocative of interstellar sci-fi TV like Battlestar Galactica or Firefly.

There are a lot of ways to get into Flashpoint, but with its biggest features being geared more towards the end-game and second playthroughs, it’s not quite essential if you’re just starting out as a first-time mech commander. It should still absolutely be on your radar, and if you've been considering another round of robot brawling, Flashpoint is a great excuse.