Ok, so after a lot of thought, I think this is the route I want to take...
Thunderbolt TDR-5FRR
Mass: 65 tons
Tech Base: Inner Sphere
Chassis Config: Biped
Rules Level: Introductory
Era: Age of War/Star League
Tech Rating/Era Availability: D/C-E-D-A
Production Year: 2505
Cost: 5,360,960 C-Bills
Battle Value: 1,326
Chassis: Earthwerks TDR Standard
Power Plant: Magna 260 Fusion Engine
Walking Speed: 43.2 km/h
Maximum Speed: 64.8 km/h
Jump Jets: None
Jump Capacity: 90 meters
Armor: Ryerson 150 Standard Armor
Armament:
1 LRM-10
1 Autocannon/5
3 Medium Lasers
1 SRM-2
2 Machine Guns
Manufacturer: Earthwerks Incorporated
Primary Factory: Keystone
Communications System: Neil 8000
Targeting and Tracking System: RCA Instatrac Mark X
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Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Standard 104 points 6.50
Engine: Fusion Engine 260 13.50
Walking MP: 4
Running MP: 6
Jumping MP: 3 Standard
Jump Jet Locations: 1 CT, 1 LT, 1 RT 3.00
Heat Sinks: Single Heat Sink 12 2.00
Heat Sink Locations: 1 LL, 1 RL
Gyro: Standard 3.00
Cockpit: Standard 3.00
Actuators: L: SH+UA+LA+H R: SH+UA+LA+H
Armor: Standard Armor AV - 200 12.50
Internal Armor
Structure Factor
Head 3 9
Center Torso 21 30
Center Torso (rear) 11
L/R Torso 15 24
L/R Torso (rear) 6
L/R Arm 10 20
L/R Leg 15 25
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Equipment Location Heat Critical Mass
--------------------------------------------------------------------------------
SRM-2 RT 2 1 1.00
3 Medium Lasers LT 9 3 3.00
LRM-10 LT 4 2 5.00
Autocannon/5 RA 1 4 8.00
2 Machine Guns LA 0 2 1.00
@SRM-2 (50) CT - 1 1.00
@LRM-10 (12) LT - 1 1.00
@AC/5 (20) RA - 1 1.00
@MG (1/2) (100) LA - 1 0.50
Free Critical Slots: 26
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 7 Points: 13
4/2j 3 3 1 0 3 0 Structure: 5
Special Abilities: SRCH, ES, SEAL, SOA, IF 1
I think this works out nicely. This version is basically a beefier Shadow Hawk, taking inspiration from two of the Thud variants I like the most (stock and jump). Obviously, the Autocannon 5 was put on, but I think "Freya" is a unique variant. It can fill the planetary assault role of the original thanks to its armor but it has a weapon load that can fill a variety of rolls. I also like how light it is on the heat scale so it can consistently fire, something that the original Thud can't really do. It's different.