User blog comment:TheEvilThing/WEAPONS MASS EFFECT NEEDS AND LOGIC TO SUPPORT IT/@comment-86.163.176.127-20120221090424

It's possible for one to be created using the technology, in fact, rather likely, due to the "what if..." nature of several alien races and humans. It's more a matter of "how will this affect the game, positively or negatively?" issue. Adding them changes the way combat works, because some weapons are no longer taken into consideration at certain ranges. Which in ultimatum causes a lot of things to be rebalanced.