BTS Unique Units not using Unique Unit sound

[ripple01]

I noticed an oversight while browsing through the BtS 3.17 ArtDefines_Unit file. Unique Units pre BtS all have a build sound for them that is a unique sound.

<TrainSound>AS2D_UNIT_BUILD_UNIQUE_UNIT</TrainSound>

However, I believe by oversight, the Unique Units added for the BtS civs have the default sound:

<TrainSound>AS2D_UNIT_BUILD_UNIT</TrainSound>

Assuming this is not intentional, it seems like something that could fall under the Unofficial Patch realm so I thought I would bring it to your attention.

Cheers,
ripple01