Misc. twaddle removed. Argue the merits or get out of the game, Trash.
I can't believe you're actually trying to use how the game engine handles targeting as a argument for a fluff discussion! 
Actually, that would be Battuta bringing up how the game engine targets, not me. I presume you actually
did notice I was quoting someone, right?
Now, if it did actually target subsystems, that would be important to a fluff discussion since it means subsystem damage is inevitable. If somebody blows out the weapons subsystem, it has an in-game effect, so it needs to be accounted for.
And vertex targeting? Aren't turrets also made of out vertexes? Subsystems too (technicly).
Subsystems are handled by a seperate system from the raw model, unless I'm completely misinterpreting the system used to define them in the modding tools. This means you could in theory cheat on their placement and make it so a straight-firing beam will never hit a subsystem, but I doubt that any canonical model does this, or that anyone's actually tried.
Turrets are handled as subobjects as anyone with cursory experience in modding FS knows, which would seem to indicate a seperate handling from the same model. I've never, in years of playing, seen a direct beam hit on a turret that was not scripted into the mission in FRED. Considering on a model like a retail Orion the turrets have a very high proportion of the total number of vertices on the model, that would seem to militate for turret vertices not being considered as points to fire against.
Beam cannons are capable of taking out subsystems and turrets. They do that sometimes in retail.
The mere fact it's only sometimes is more or less proving my point, since that means they do not target subsystems or turrets delibrately in retail. Otherwise it would be an "always."
They can certanly do that in both FRED and in other campaigns. There's even the AI profile setting for them.
Capablities outside of retail useage are irrevelant to discussion of canonical capablities. Wait, you actually knew that. You said so in the very next sentence. What's your point?
Not that AI profiles or FRED or other campaigns have anything to actually do with the argument, but you seem to think tehy have....
Cite source for this statement. I have always, and only, said exactly this.