I built several versions as a way to give MegaMekLab a test ... then renamed them slightly for tact. [grin] Had to use Clan tech to get what I wanted out of the 100-ton chassis, but I've been using them as opponents in giant-slayer type games. And it's as nimble as the original MAC-2 Monster.
The base model (MONS-2A) mounts four LB-10X in the torsos, with ER Mediums in the arm mounts. Ammo is stored in the shoulders (for several reasons - ease of reloading, there was space there, and it helped reduced the impact of ammo explosions).
Monstrosity MONS-2A
Clan TW
100 tons
BV: 2,309
Cost: 10,523,667 C-bills
Movement: 2/3
Engine: 200
Heat Sinks: 15 [30]
Gyro: Standard Gyro
Internal: 152
Armor: 304/307
Internal Armor
--------------------------------------
Center Torso 31 45
Center Torso (rear) 14
Right Torso 21 30
Right Torso (rear) 12
Left Torso 21 30
Left Torso (rear) 12
Right Arm 17 34
Left Arm 17 34
Right Leg 21 42
Left Leg 21 42
Weapon Loc Heat
----------------------------------------
ER Medium Laser LA 5
ER Medium Laser LA 5
ER Medium Laser LA 5
ER Medium Laser RA 5
ER Medium Laser RA 5
ER Medium Laser RA 5
LB 10-X AC LT 2
LB 10-X AC LT 2
ER Small Laser (R) LT 2
LB 10-X AC RT 2
LB 10-X AC RT 2
ER Small Laser RT 2
AMS HD 1
Ammo Loc Shots
----------------------------------------
LB 10-X AC Ammo LA 10
LB 10-X Cluster Ammo LA 10
AMS Ammo LA 24
LB 10-X AC Ammo RA 10
LB 10-X Cluster Ammo RA 10
Then there was this modernised version, packing an ATM-6 in each arm (two missiles launching per tube, for the imagery purists).
Monstrosity MONS-3M
Clan TW
100 tons
BV: 2,070
Cost: 10,603,667 C-bills
Movement: 2/3
Engine: 200
Heat Sinks: 10 [20]
Gyro: Standard Gyro
Internal: 152
Armor: 304/307
Internal Armor
--------------------------------------
Center Torso 31 45
Center Torso (rear) 14
Right Torso 21 30
Right Torso (rear) 12
Left Torso 21 30
Left Torso (rear) 12
Right Arm 17 34
Left Arm 17 34
Right Leg 21 42
Left Leg 21 42
Weapon Loc Heat
----------------------------------------
ATM 6 LA 4
ATM 6 RA 4
LB 10-X AC LT 2
LB 10-X AC LT 2
ER Small Laser (R) LT 2
LB 10-X AC RT 2
LB 10-X AC RT 2
ER Small Laser RT 2
AMS HD 1
Ammo Loc Shots
----------------------------------------
LB 10-X AC Ammo LA 10
LB 10-X Cluster Ammo LA 10
AMS Ammo LA 24
ATM 6 Ammo LA 10
ATM 6 ER Ammo LA 10
LB 10-X AC Ammo RA 10
LB 10-X Cluster Ammo RA 10
ATM 6 Ammo RA 10
ATM 6 ER Ammo RA 10
And finally, the MONS-2R variant of the original model, which is a serious monster. Until it runs out of gauss ammo. But by then, it may well have taken out at least a lance of opponents ...
Monstrosity MONS-2R
Clan TW
100 tons
BV: 2,545
Cost: 8,865,667 C-bills
Movement: 2/3
Engine: 200
Heat Sinks: 10 [20]
Gyro: Standard Gyro
Internal: 152
Armor: 304/307
Internal Armor
--------------------------------------
Center Torso 31 45
Center Torso (rear) 14
Right Torso 21 30
Right Torso (rear) 12
Left Torso 21 30
Left Torso (rear) 12
Right Arm 17 34
Left Arm 17 34
Right Leg 21 42
Left Leg 21 42
Weapon Loc Heat
----------------------------------------
ER Small Laser LA 2
ER Small Laser LA 2
ER Small Laser LA 2
ER Small Laser RA 2
ER Small Laser RA 2
ER Small Laser RA 2
Gauss Rifle LT 1
Gauss Rifle LT 1
Gauss Rifle RT 1
Gauss Rifle RT 1
AMS HD 1
Ammo Loc Shots
----------------------------------------
Gauss Ammo LA 8
Gauss Ammo LA 8
Gauss Ammo RA 8
Gauss Ammo RA 8
AMS Ammo CT 24
Gauss Ammo CT 8