Can't remember if I just glossed this over, but I don't recall any rules for summoning and forming ectoplasm, during some char creation sillyness my players had some really wacky ideas that seem almost doable under the rules. But I don't remember rules for ectoplasm, was it evocation? Thaumaturgy? Heres a couple ideas they ran by me.

Spiderman like ectoplasm slinging. All this would really be is forming a rope with ectoplasm spanning from your hand to where ever. I don't think it is too complicated.

Or an alternative to this batman grappling hook. actually having a bungee cord attached to your body and just using evocation to "throw" it a ways away hurling you with it.

One thing they haven't thought of is how to stop once they've flung themselves, but I'll let them know that once their face is in a wall.

Also one of the more wacky ideas was forming a gundam like construct of ectoplasm and then piloting it. Someone had the even more amazing notion of everyone having it in the form of ludicrous thaumaturgic spells and combining them into a megazord. Silly I know and I would never allow it, but I was still curious of it can be done in the system which would be AWESOME.

Also how would someone add flying powers to a construct?

I feel like people confuse physical mechanics with story mechanics. Dresden files focuses much more on story mechanics than physical ones.

Aspects represent something relevant to the story, and fate points govern how often they can come into the story. Aspects are typically only given to things that are important to the story, they are not meant to simulate a physical world.

Take for instance enchanted armor like Dresdens leather duster: it is ALWAYS bullet proof, but it can only be used in the story 3 times per session. It doesn't lose its enchantments if used 3 times, it just can only be used in a way relevant to the story 3 times per session. Likewise and enchanted blade of superlative sharpness is ALWAYS an enchanted blade, but can only effect the story x times per session.

So lets take the laser sight. Is it important to the story in the long term? Then it should probably be a character aspect (advanced arsenal or something). Is it a thing that comes up once? Declarations can handle that fine.

Yes, the laser sight is still there and doing something when it isn't being tagged, but that doesn't really have any long term effects on the story, so it is ignored except for the times that it is story relevant (i.e. tagged or evoked).

Imagine if it was a book? Every time you tag an aspect you can imagine it is a point being dwelled upon in a book. Can you really see "the laser sight" being constantly referenced just because it was put on the gun? It comes up a few times, but not a ton.

was this meant for another thread?

Enchanted items work well as specially powered....things without costing refresh. Perhaps dragon armor requires intense heat or some other energy source to give it a lasting effect of some sort through thaumaturgy.

Isn't that how sights can work now?  You do a manouver to get the aspect "in my sights", tag it for an invocation to get +2, then do that over again the next turn if you want the +2 without spending a fate point.

Yes but if it existed as something akin to an enchanted item it wouldn't need to be maneuvered every other round it would automatically refresh itself for use since it satisfied its recharge requirement.

I'm just saying IMO that something like laser sights are automatically useful without any further effort of the user to start. Whereas "In my sights" is a direct effort or observation of the user. Once you switch that laser on  it is on... until the battery runs out.

This can also be described as a declaration, but what if the player fails the declaration or maneuver in a freak accident? Does their custom pistol grip poof out of existence for a turn and pop back in when they make the declaration again? Perhaps it simply doesn't help them that turn due to extenuating circumstances the GM is now required to come up with. That makes sense I suppose, I'd be hard pressed to explain to my gun-nut player why his advanced rifling inexplicably didn't help his aim this turn though. Perhaps I'll just blame it on the wizard's tech ruining aura. "A wizard did it"

I'm suddenly reminded of trinity blood, an anime where a certain type of vampire existed that fed on other vampires and had an enemy of my enemy thing going with humans.

It would occur to me though that anything a WCV's incite emotion worked on could in turn be fed upon. There should be some equality there.

As for bloodsuckers... I dunno the setting isn't detailed so far as to indicate comparisons of different species blood, although it would be interesting  if some species or sects of humanity evolved blood that didn't sit well with certain vamp types.

I always find this part of the system to be awkward. Fate points are not the most abundant commodity, and it doesn't seem... correct that one should have to sink fate points over and over into a laser sight that is always on or a barrel that has been rifled, Its not like the barrel has been un-rifled after one shot and must have magical fate points applied again to make it rifled once more.

That said though the game balance can go rather screwy if you can permanently tag aspects. Don't treat these as pure positive additions to your guns though, they are situational a proper gm should be compelling you for those things in the right instances. I have some ideas on this so I'll jot em down.

Scopes - Anything running or moving fast (use judgment) is going to leave the scopes FOV pretty quick making for an easy compel. On top of this any jarring motion to the gun, kicked, dropped off a building etc will make the scope un-taggable.

Laser sights - usable almost all the time, but magic should interfere with their function, basically any magic user born 30 ago years or earlier should be putting these out of commission. Also they don't do very well for surprise attacks. Also in the right circumstances they can give your position away. Lastly using both a scope and laser sight doesn't make sense you should not be tagging them both at the same time ever.

If you want rattle off some mods you'd like to use, I rather enjoy coming up with house rules like this.