I agree now that the early LAM rules favored them, and that this angered some players. Some of my first real tabletop games featured these struggles.
It was a rock, paper, scissors battle, not with the OpFor, but with the GM, who felt that the LAM advantage was a bit hard to swallow. Despite that, however, he allowed it, especially after I rolled spectacularly for my starting 'Mech. I needed a 12 to get my HK2, and I rolled a 12. I could have started with a Highlander, but I chose the LAM.
The first tech he gave me was a moral degenerate. Maybe he felt that was how to make me equal with the other players. The first stand up fights we had involved a lot of me scouting, flanking and trying to avoid getting one-shot killed. (Despite the movement munch the early LAMs had, they were still fragile.) I had complete inventories, locations and movement of OpFors by turn 3 or 4. We used those advantages to the max. Imagine if I had a Beagle or upgraded sensors! You can't hide, and you can't run.
Perhaps the crow(n)ing achievement was on the third or fourth session, when I went out on solo patrol, spotted a Locust and killed it with barely any damage. Then I shot off its legs, rigged the CT and head on a strong net rigging, then lifted it, AirMech mode, and carried it back to camp, the Hunter with his Kill.
That must have been the final straw because every engagement after that included a full lance of Partisan-AC/2s, just for me, no joke. :)
I, alone, accounted for way over my BV in OpFor, just because of all the free movement, and my ability to imagine how my character would want to fight the LAM.
In the end, I acknowledge that although I was highly miffed by that ubiquitous Party lance, I did sort of push the issue, in order to make space for myself. Always trying to maximize that LAM movement utility by the rulebook.
I missed something of the spirit of the game when I just assumed that a real OpFor, facing that circumstance, might not, indeed, bring up a lance of Partisans to try and pick off that nasty LAM that was going all predator on their recon. I didn't have a really good grasp of the scope at that point. He could have killed me off with one aerofighter, but he didn't.
So, in the interest of burying the hatchet, I do admit it was an arms race and the earliest LAM rules gave them a significant head start. GMs had to do way more work to contain the LAM, and received little in return if they were not enjoying the action.