we have had assimilation turrets in pre beta 1 phase for testing in the game. but there are a few problems with the turrets, either they are to strong or to compansate that, we had to increase price that high its not worth building them. the problem with the assimilation turrets is that they cannot move. by giving them lot of hull hps makes them a too strong threat. dispite that if we  bring such useful and comfortable () turrets in the game borg players would tend to bunker instead going to attack their enemy. we want to keep fleet operations a mod where you go into offensive combat not just defending and build up a fleet while another player looses half his fleet at your base defence. think of, a assimilation turret would be a very strong weapon, you do not only destroy another ones vessel but you even get it. if we would make them too cheap you could build like 4 or 5 of them at your entrance and wait until something attacks you what you then probably assimilate. now you got stronger cause you gained the other players vessel + have your own while the other player may have nothing left and just starts rebuilding his fleet.