Would you prefer I be more of a brawler or be more of a generalist? I am of the opinion that AA quirk is somewhat a wasted with that suggested AC-20 configuration. I could do this configuration as well if you don't mind the damage being spread around more than an AC-20. It loses the flak bonus though.
Orion FG
Mass: 75 tons
Tech Base: Inner Sphere
Chassis Config: Biped
Rules Level: Experimental Tech
Era: All Eras (non-canon)
Tech Rating/Era Availability: E/D-F-D-D
Production Year: 0
Dry Cost: 7,058,625 C-Bills
Total Cost: 7,058,625 C-Bills
Battle Value: 1,699
Chassis: Unknown Standard
Power Plant: Unknown 300 Fusion Engine
Walking Speed: 43.2 km/h
Maximum Speed: 64.8 km/h
Jump Jets: None
Jump Capacity: 120 meters
Armor: Unknown Ferro-Fibrous
Armament:
4 Large Lasers
Manufacturer: Unknown
Primary Factory: Unknown
Communications System: Unknown
Targeting and Tracking System: Unknown
================================================================================
Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Standard 114 points 7.50
Engine: Fusion Engine 300 19.00
Walking MP: 4
Running MP: 6
Jumping MP: 4 Standard
Jump Jet Locations: 2 CT, 1 LL, 1 RL 4.00
Heat Sinks: Double Heat Sink 16(32) 6.00
Heat Sink Locations: 2 LT, 2 RT
Gyro: Standard 3.00
Cockpit: Standard 3.00
Actuators: L: SH+UA R: SH+UA
Armor: Ferro-Fibrous AV - 224 12.50
Armor Locations: 1 HD, 1 LT, 1 RT, 5 LA, 4 RA, 1 LL, 1 RL
Internal Armor
Structure Factor
Head 3 9
Center Torso 23 33
Center Torso (rear) 10
L/R Torso 16 24
L/R Torso (rear) 8
L/R Arm 12 24
L/R Leg 16 30
================================================================================
Equipment Location Heat Critical Mass
--------------------------------------------------------------------------------
Large Laser RA 8 2 5.00
Large Laser LA 8 2 5.00
Large Laser RT 8 2 5.00
Large Laser LT 8 2 5.00
Free Critical Slots: 13
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 7 Points: 17
4j 4 4 0 0 3 0 Structure: 6
Special Abilities: ENE, SRCH, ES, SEAL, SOA
Alternatively here is a hybrid.
Orion FG
Mass: 75 tons
Tech Base: Inner Sphere
Chassis Config: Biped
Rules Level: Experimental Tech
Era: All Eras (non-canon)
Tech Rating/Era Availability: E/E-F-D-D
Production Year: 0
Dry Cost: 7,436,625 C-Bills
Total Cost: 7,488,625 C-Bills
Battle Value: 1,616
Chassis: Unknown Standard
Power Plant: Unknown 300 Fusion Engine
Walking Speed: 43.2 km/h
Maximum Speed: 64.8 km/h
Jump Jets: None
Jump Capacity: 120 meters
Armor: Unknown Ferro-Fibrous w/ CASE
Armament:
1 LB 10-X AC
2 Large Lasers
Manufacturer: Unknown
Primary Factory: Unknown
Communications System: Unknown
Targeting and Tracking System: Unknown
================================================================================
Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Standard 114 points 7.50
Engine: Fusion Engine 300 19.00
Walking MP: 4
Running MP: 6
Jumping MP: 4 Standard
Jump Jet Locations: 1 LT, 1 RT, 1 LL, 1 RL 4.00
Heat Sinks: Double Heat Sink 12(24) 2.00
Gyro: Standard 3.00
Cockpit: Standard 3.00
Actuators: L: SH+UA R: SH+UA
Armor: Ferro-Fibrous AV - 215 12.00
Armor Locations: 1 HD, 1 LT, 1 RT, 5 LA, 4 RA, 1 LL, 1 RL
CASE Locations: 1 RT 0.50
Internal Armor
Structure Factor
Head 3 9
Center Torso 23 30
Center Torso (rear) 8
L/R Torso 16 23
L/R Torso (rear) 8
L/R Arm 12 23
L/R Leg 16 30
================================================================================
Equipment Location Heat Critical Mass
--------------------------------------------------------------------------------
Large Laser RA 8 2 5.00
Large Laser LA 8 2 5.00
LB 10-X AC RT 2 6 11.00
@LB 10-X (Cluster) (20) RT - 2 2.00
@LB 10-X (Slug) (10) RT - 1 1.00
Free Critical Slots: 19
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 7 Points: 16
4j 3 3 1 0 3 0 Structure: 6
Special Abilities: CASE, SRCH, ES, SEAL, SOA, FLK 1/1/1
The hybrid doesn't have any padding though so a lucky hit is going to cripple it pretty badly.