User blog comment:Ygrain/Seriously, Aria?!/@comment-3201701-20121228222857/@comment-4721065-20130102015958

Nice to see you Marauder! Anyway, let's get back to the topic.

If you smoke a large area around you, which is what the Cerberus troops do, the enemies are unable to see them also, but then those enemies can't just move away from the smoke cloud, so smoking your position is actually more reliable. Good point about following smokes with regular frag grenades, but I guess they're too heavily indoctrinsted to think of that.

Given just how quickly Cerberus had expanded/become more well-known/whatever, we need them in/ in just two years, it wouldn't be surprising if some of their stuff got lost. You can come up with many more Watsonian explanations to the Doylian problem of Cerberus semi-retcon and resultant consequences.

Finally, not only do salarians probably have a lot of other stuff to send them to, I don't think Aria would actually want to accept their help. As I have said, they're entirely self-serving and ruthless, and given that they had time amidst the war to screw up genophage cure yet again, Aria would have every reason to refuse them.