So had to drop the armor, a couple heat sinks, the Thumper, the Angel ECCM, the Medium Pulses, the Plasma Rifle... and reshuffle the weapons around. Runs a lot hotter so you can't Alpha Strike as often.. but double the arty power.
Now to make a variant with a Sniper lol

Although I might attempt a variant that is good against BA specifically.
Cannae CN1-AE2
Mass: 200 tons
Chassis: Standard Superheavy Biped
Technology Base: Mixed (Experimental)
Power Plant: 400 XL
Cruising Speed: 21.6 kph
Maximum Speed: 32.4 kph
Jump Jets: None
Jump Capacity: 0 meters
Armor: Standard
Armament:
2 ER Small Pulse Laser
2 Heavy Flamer
4 AP Gauss Rifle
1 Long Tom Cannon
2 SRM 4
3 Heavy Machine Gun
1 'Mech Mortar 8
1 Laser AMS
1 Heavy Machine Gun Array
2 Plasma Cannon
Manufacturer: Unknown
Primary Factory: Unknown
Communication System: Unknown
Targeting & Tracking System: Unknown
Introduction Year: 3145
Tech Rating/Availability: F/X-X-X-F*
Cost: 79,543,750 C-bills
Battle Value: 3,211
Equipment Mass
Internal Structure 40
Engine 400 XL 26.5
Walking MP: 2
Running MP: 3
Jumping MP: 0
Double Heat Sink 21 [42] 11
Superheavy Gyro 8
Superheavy Cockpit 4
Armor Factor 552 34.5
Internal Armor
Structure Value
Head 4 12
Center Torso 60 80
Center Torso (rear) 30
R/L Torso 42 60
R/L Torso (rear) 20
R/L Arm 33 60
R/L Leg 42 75
Right Arm Actuators: Shoulder, Upper Arm, Lower Arm
Left Arm Actuators: Shoulder, Upper Arm, Lower Arm
Weapons
and Ammo Location Critical Heat Tonnage
Double Heat Sink LL 2 - 1.0
Anti-Personnel Pods LL 1 - 0.5
Bloodhound Active Probe CT 3 - 2.0
Radical Heat Sink System CT 3 - 4.0
Heavy Machine Gun Ammo (200) CT 2 - 2.0
Anti-Personnel Gauss Rifle Ammo (80) CT 2 - 2.0
Double Heat Sink CT 2 - 1.0
CASE II RT 1 - 0.5
SRM 4 Inferno Ammo (50) RT 2 - 2.0
3 Heavy Machine Gun RT 3 0 1.5
'Mech Mortar 8 RT 3 10 5.0
Heavy Machine Gun Array RT 1 0 0.25
SRM 4 Fragmentation Ammo (50) RT 2 - 2.0
Anti-personnel Mortar 8 Ammo (16) RT 4 - 4.0
Heavy Flamer Ammo (20) LA 2 - 2.0
SRM 4 LA 1 3 1.0
Plasma Cannon LA 1 7 3.0
ER Small Pulse Laser LA 1 3 1.5
2 AP Gauss Rifle LA 2 1 1.0
Heavy Flamer LA 1 5 1.5
Double Heat Sink LA 2 - 1.0
Plasma Cannon Ammo (20) LA 2 - 2.0
CASE II LT 1 - 0.5
Long Tom Cannon Ammo (20) LT 4 - 4.0
Long Tom Cannon LT 15 20 20.0
Double Heat Sink RL 2 - 1.0
Anti-Personnel Pods RL 1 - 0.5
Laser AMS HD 1 5 1.0
Heavy Flamer Ammo (20) RA 2 - 2.0
SRM 4 RA 1 3 1.0
Plasma Cannon RA 1 7 3.0
ER Small Pulse Laser RA 1 3 1.5
2 AP Gauss Rifle RA 2 1 1.0
Heavy Flamer RA 1 5 1.5
Double Heat Sink RA 2 - 1.0
Plasma Cannon Ammo (20) RA 2 - 2.0