Here is the single laser built, textured and imported into Unity with the laser effect that will play in game. Really happy with the way it turned out.
From concept, thanks to Sukhbir Purewal : https://tinyurl.com/y7bby6r8 .......
....to final ingame with particles and some texture animation.
And finally below is a short video of the Laser Turret in game on the Alien Level. Attributes for the turret need to be tweaked and balanced but it's feeling quite good and has a nice sense of the trench run in star wars, albeit not as quick!
Now time to texture up the Twin Laser Turret and the Photon Turrets!