Here's what I have been using on Dominion for a few years. Simple swap of the AC/5s and LL for (4) AC/2s and 3 tons of ammo. At only 873 BV, this thing is a sniper beast. 1,222 BV for a 2-gunnery pilot that'll snipe all day long at ranges few could match in its day. After 22 games (which is a small sample size, admittedly), it had a 54% win percentage when fielded, with 9 times destroyed (41%). Compare that to the RFL-3N, with a 41% win percentage and was destroyed 52% of the time (this is in 92 games).
RIFLEMAN RFL-3ARifleman RFL-3A
Mass: 60 tons
Tech Base: Inner Sphere
Chassis Config: Biped
Rules Level: Tournament Legal
Era: Succession Wars
Tech Rating/Era Availability: D/X-D-D-A
Production Year: 2770
Cost: 4,612,800 C-Bills
Battle Value: 873
Chassis: Kallon Type IV Standard
Power Plant: Pitban 240 Fusion Engine
Walking Speed: 43.2 km/h
Maximum Speed: 64.8 km/h
Jump Jets: None
Jump Capacity: 0 meters
Armor: Kallon Royalstar Standard Armor
Armament:
2 Magna Mk. II Medium Lasers
4 Armstrong Autocannon/2s
Manufacturer: Kallon Industries
Primary Factory: Nanking (Kallon)
Communications System: Garret T11-A
Targeting and Tracking System: Garret D2j
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Equipment Type Rating Mass
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Internal Structure: Standard 99 points 6.00
Engine: Fusion Engine 240 11.50
Walking MP: 4
Running MP: 6
Jumping MP: 0
Heat Sinks: Single Heat Sink 10 0.00
Heat Sink Locations: 1 LL
Gyro: Standard 3.00
Cockpit: Standard 3.00
Actuators: L: SH+UA R: SH+UA
Armor: Standard Armor AV - 120 7.50
Internal Armor
Structure Factor
Head 3 6
Center Torso 20 22
Center Torso (rear) 4
L/R Torso 14 15
L/R Torso (rear) 2
L/R Arm 10 15
L/R Leg 14 12
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Equipment Location Heat Critical Mass
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Medium Laser RT 3 1 1.00
Medium Laser LT 3 1 1.00
2 Autocannon/2s RA 2 2 12.00
2 Autocannon/2s LA 2 2 12.00
@AC/2 (45) CT - 1 1.00
@AC/2 (45) RT - 1 1.00
@AC/2 (45) LT - 1 1.00
Free Critical Slots: 41
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 4 Points: 9
4 2 2 1 0 3 0 Structure: 5
Special Abilities: SRCH, ES, SEAL, SOA