I like the agro mechs. Haven't read the story or setting.
I'm more partial to agro mechs and their use during the Succession Wars and Clan Invasion, of which there is some but little detail of. Despite their issues I have seen some perform very well against a limited number of Clan mechs and a home field advantage with buildings, forests, etc.
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Far as Battletech itself, the board games are all set in 3150 now with all new stuff and new rules.
But to appreciate Battletech, I suggest grabbing Megamek and turning on every single rule you possibly can. Let the computer handle the rules, do some stuff and check out what happens.
Nothing like taking a tank, and wiping Battlemechs out.

8 kills out of 10 enemies attributed to that tank. Twin AC/10s, 4 LRM-5s. Tracked within the first 20 seconds, still slaughtered almost everything.
(Arrows on the map are places that can and will change elevation, creating dynamic walls in this Solaris Arena.)
Missions with summaries.
Maintain an army.
You can find River City in there.
Suffer catastrophic engine failures (Stackpoles). (This pilot was already unconscious when this occurred, hence the mass of ???? because double blind rules and no one on my side to witness my unconscious pilot's mech explode with him inside of it).
Epically fail at surprise ambushes (This Dire Wolf stormed THROUGH the building, destroying it in the process to ambush and surprise the enemy, only for the Shadowhawk to jump behind it and both the Battlemaster and Shadowhawk to kick the Dire Wolf, both of them crippling the Dire Wolf's leg and destroying
all four actuators in the process, making it do an instant faceplant).

Create your own mechs because why not?

Enjoy Forest Colony.
And so much more.