...I want to mount a Mech Mortar on a Trailer, but need to make sure I understand their to-hit calculation.
Example 1
A Trailer with a MM/8 is firing at an enemy Mech behind a ridge, out of LOS.
- The Tractor's Gunnery skill is a 4. (4)
- The enemy Mech is at Medium range. (+2)
- The Trailer was stationary in the Movement Phase. (+0)
- The enemy Mech moved 4 hexes. (+1)
Does the +1 penalty from the rules for LRM indirect fire apply?
The rules for Mech Mortars include an additional +2 penalty for indirect fire without a spotter.
The MM/8 fires Airburst ammunition, aiming at the stationary hex, for a bonus of (-4).
The final to-hit number is 6.
- If a friendly unit can be used as a spotter, substitute the spotters movement modifier for the +2 penalty. If a Battlearmor squad is used as a spotter, do they qualify as Infantry and have no movement modifier? (LRM Indirect Fire, pg 111, TW.) If this is the case, would the to-hit number be a 4?
Example 2
A Trailer with a MM/8 is firing directly at an enemy Mech in LOS.
- The Tractor's Gunnery skill is a 4. (4)
- The enemy Mech is at Medium range. (+2)
- The Trailer was stationary in the Movement Phase. (+0)
- The enemy Mech moved 4 hexes. (+1)
Does the +1 penalty from the rules for LRM indirect fire apply?
The rules for Mech Mortars include an additional +3 penalty for direct fire.
The MM/8 fires Airburst ammunition, aiming at the stationary hex, for a bonus of (-4).
The final to-hit number is 7.
Example 3
A C3-equipped Tractor with 4 Trailers, each with a MM/8, is firing at an enemy Mech behind a ridge, out of LOS.
- The Tractor's Gunnery skill is a 4. (4)
- A C3-equipped friendly Mech is at 7 hexes from an enemy Mech, providing a Short range modifier. (+0) If the Mech was at or within 6 hexes, a minimum range penalty would apply.
- The Trailer was stationary in the Movement Phase. (+0)
- The enemy Mech moved 4 hexes. (+1)
Does the +1 penalty from the rules for LRM indirect fire apply?
The rules for Mech Mortars include an additional +2 penalty for indirect fire without a spotter.
The MM/8 fires Airburst ammunition, aiming at the stationary hex, for a bonus of (-4).
The final to-hit number is 4.
- If a friendly unit can be used as a spotter, substitute the spotters movement modifier for the +2 penalty. If a Battlearmor squad is used as a spotter, do they qualify as Infantry and have no movement modifier? (LRM Indirect Fire, pg 111, TW.) If this is the case, would the final to-hit number be a 2?