[General] Concussion Missile TEMP: Wrong model and sound

[Raffaello Grani]

The current temporary Concussion Missile (see Commit 2c40289) uses the model and the launch sound effect from the Proton Torpedo.

(Note: This does not affect build 20180508)

[Raffaello Grani]

The issue still exists.

[Raffaello Grani]

Fixed in build 190106.