The BV for the Vindicator VND-3LD (Dao) is listed incorrectly as 1,657. My calculations, along with those of MML, come to 1,639. SSW calculates it as 1,814, which also matches the record sheet. So I'm not sure where the calculation may be off. Here is my breakdown I have:
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Defensive Battle Rating
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Armor (Ferro-Fibrous): 153 x 2.5 x 1 382.500
Internal Structure (Endo Steel w/ Compact Engine): 75 x 1.5 x 1 x 1 (+) 112.500 = 495.000
Gyro (Compact): 45 x 0.5 (+) 22.500 = 517.500
Defensive Equipment:
Laser Anti-Missile System (+) 45.000 = 562.500
Explosive Ammunition: 1 Critical Space (-) 15.000 = 547.500
Explosive Equipment: 3 Critical Spaces (-) 3.000 = 544.500
Defensive Movement Factor: +3 (*) 1.30 = 707.850
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Final Defensive Battle Rating: 707.850
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Offensive Battle Rating
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Offensive Equipment:
ER PPC 515.000
Mech Taser (+) 50.000 = 565.000
Mech Taser (Ammo 5) (+) 5.000 = 570.000
Total 'Mech Tonnage: (+) 54.000 = 624.000
Speed Factor: 8 (Run) + 2 (Jump) (*) 1.630 = 1,017.120
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Final Offensive Battle Rating: 1,017.120
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BattleMech Battle Value
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Defensive Battle Rating: 707.850
Offensive Battle Rating: (+) 1,017.120 = 1,724.970
Cockpit (Small): (*) 0.95 = 1,638.722
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Final BattleMech Battle Value: 1,639