I'm eyeballing it (based on tonnage) as being slightly in favor of the Attackers - though by less than 2:1. How did you determine force compositions? BV, Tonnage, 'ah, this looks good?' The last can be fun.
Honestly, it was not a balanced scenario. My experience (from reading, not being in the military) is that war is rarely balanced. The only reason the Freemen attacked at this time is because they felt they had a window of opportunity in which to take advantage of an unbalanced situation. That situation was the players' to lose depending on how they deployed their ECM and neutralized targets.
The Freemen took a beating, frankly, and if they had slipped up even ONCE with the ECM, they probably would have lost the mission. In the wings I had a strike lance comprised of BRZC3, VND5L, OTL7M, and LNX9Q. One turn after they arrived, they'd be joined by ON2M, CTF4L, HBK5L, and GHR6K.
HBK 5L
Hunchback HBK-5H
Mass: 50 tons
Tech Base: Inner Sphere
Chassis Config: Biped
Rules Level: Tournament Legal
Era: Clan Invasion
Tech Rating/Era Availability: E/X-X-E
Production Year: 3062
Cost: 6,077,875 C-Bills
Battle Value: 1,602
Chassis: Unknown Standard
Power Plant: Unknown 200 Fusion Engine
Walking Speed: 43.2 km/h (54.0 km/h)
Maximum Speed: 64.8 km/h (86.4 km/h)
Jump Jets: None
Jump Capacity: 0 meters
Armor: Unknown Stealth Armor w/ CASE
Armament:
1 LB 20-X AC
1 ER Medium Laser
1 Medium Laser
1 Small Pulse Laser
1 Small Laser
1 Guardian ECM Suite
Manufacturer: Unknown
Primary Factory: Unknown
Communications System: Unknown
Targeting and Tracking System: Unknown
================================================================================
Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Standard 83 points 5.00
Engine: Fusion Engine 200 8.50
Walking MP: 4 (5)
Running MP: 6 (8)
Jumping MP: 0
Heat Sinks: Double Heat Sink 10(20) 0.00
Heat Sink Locations: 1 LT, 1 RA
Gyro: Standard 2.00
Cockpit: Standard 3.00
Actuators: L: SH+UA+LA+H R: SH+UA+LA+H
TSM Locations: 1 CT, 2 LT, 3 LA
Armor: Stealth Armor AV - 160 10.00
Armor Locations: 2 LT, 2 RT, 2 LA, 2 RA, 2 LL, 2 RL
CASE Locations: 1 LT 0.50
Internal Armor
Structure Factor
Head 3 9
Center Torso 16 24
Center Torso (rear) 7
L/R Torso 12 18
L/R Torso (rear) 6
L/R Arm 8 16
L/R Leg 12 20
================================================================================
Equipment Location Heat Critical Mass
--------------------------------------------------------------------------------
Small Pulse Laser HD 2 1 1.00
LB 20-X AC CT/RT 6 1/10 14.00
Guardian ECM Suite LT 0 2 1.50
ER Medium Laser RA 5 1 1.00
Medium Laser RA 3 1 1.00
Small Laser RA 1 1 0.50
@LB 20-X (Cluster) (5) LT - 1 1.00
@LB 20-X (Slug) (5) LT - 1 1.00
Free Critical Slots: 3
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 5 Points: 16
4 3 2 0 0 2 1 Structure: 4
Special Abilities: TSM, ECM, STL, CASE, SRCH, ES, SOA, FLK 1/1/0