Your posts, all they tell me is that you've never been solidly smacked down like you should for using designs that are practically pre-patch akimbo '87s in Modern Warfare 2.
Why do you think I use those designs ?
I have played the Boardgame for 5 years in a Chapter, competing against other Chapter on conventions.
The Mechs in the Chapters Roster have been de terminated by a roll on a House/Clan specific table.
All damage was carried to the next battle at the same con, destroyed Mechs were removed from the Rooster.
My first Mech was a Standard 3025 Marauder (2xPPC 1xAc5 2xMedium Laser, 16 Heat Sinks) and I played it for 2 Years until a lucky shoot in the Ammobin destroyed it.
Next Mech was a Standard Centurion also played for 2 Years (CT destroyed)
Last Mech was a Standard Withwort played for a Year
Actuality only play once or twice a Year - and for a Week at a large scale Scenario with 70 players.
Eventually you'll find someone who can and will repeatedly smack you into the ground until you learn to open the range a bit and use something besides Medium Lasers. The board game is balanced up until the point where someone deliberately unbalances it with munched out 'Mechs.
Nothing is balanced, and you have to set the rules of the scenario (map layout, mechs, ect...) to balancing it.
If you want to play a real balanced game you have to take a look to dreampod 9s Heavy Gear oder Steve Jacksons Car Wars - both games with a much better design.