Quoting GoaFan77, reply 1I find that... unlikely. Keep in mind weapon affects are purely visual in Sins, there can be some delay between when you see them hit and it takes damage... especially with missiles. Also was it a Vasari extractor? They have the ability to temporarily phase out.
I am aware that effects are visual, however there was zero damage of any kind and I definitely waited more than long enough to verify I was not overlooking delay. Since then I have been trying to see it again, but I have not had a chance to catch the missiles hitting a target that the autocannons are not also hitting. That is making it hard to verify 100%. I Will take the route Seleuceia suggested and mod out the other weapons.
The Delay is not a conventional delay of "damage happens a few seconds after weapon hits for each weapon". it more a matter of every X seconds the engine chesk which weapons have been fired recently and applies all of the recent hits simulataneously. So it's very likely that missile damage and Gauss damage will be process and cause only a single hull drop(though the magnitude of the health drop is the sum of the 2 weapons.
Honestly for a titan as heavily used as the Ragnarov, someone would have noticed by now if one of it's weapon systems were bugged. Also frankly even if it were bugged, it shouldn't be changed as the Ragnarov is already one of the stronger titans(damage could be moved from gauss to missiles, but totle DPs shouldn't go up).