I hate being negative but Hardpoints really are a bad idea.
Classic battle tech gives you:
1 open slot in the head
8 open slot in the arms
12 open slots in the RT, LT torso
2 open slots in the CT
2 open slots in the legs
So taking a Jenner JR7-F for example 3025 mech from what your saying its going to have weapon hardpoints in only the arms so if I blow both of them off you can just run around the board until I finish killing everything else. Since you don't have any other weapon points.
Thats not fun for the player.
I would adopt a mech lab like Mechwarrior 3 were you just build the mech you want. Most hardpoints are interchangeable if you open up your computer tower you have a rail system that allows you place a CD ROM, Harddrive, floppy, Thats what the inside of a mech looks like you slide in the weapon bolt it down and your ready to go.
If wasn't set up like that it would make field repairs nightmares because you would have perfectly good mechs but because the mechanic could not attach your arm in time for the battle you loose all of those hardpoints. to mount a weapon
Basicly you can cripple mechs now because everyone going to know were all your hard points are.
This was a bad move in my book.
IIRC a Jenner has 8 points of armour in each arm, 12 points of armour in the front centre torso, 9 points in the back centre torso. Could be wrong, haven't played it in a while. But the general principle I wanna bring across is: while some of the more sadistic players out there might choose to shoot off your arms for a total of 16 points just for the sake of seeing you run around like a headless chicken, you can bet I would rather core you instead.
And please show me a single Hunchback official variant in either TT or MechWarrior canon or MechWarrior games that contains weapons in its left torso. Just because players had the ability to always hide 7 medium lasers in the legs, centre torso and head in MW3 and MW2 doesn't make that system the way it should have been. The chance to lose weapons is something any true MechWarrior would have to face.
Say we abandon the hardpoint system. Now give me a single good reason to put my weapons -and armour!- on the side torsos and arms instead of in the centre torsos, legs and head. There isn't one. I'd throw all my armour and armament into the those places, and charge you with 2-3 points of armour in my side torsos and arms, and laugh when you shoot them because they're freaking redundant.
3 large pulse lasers is immensely destructive, and it's not hard to fit that into the centre torso and legs.