NFM character using guns mounted to their body

[Keyboardstalker]

Originally Posted by Varyon

I'd probably have it be a new specialty of Guns. The details of aiming might result in two (possibly more) specialties of Guns, however. Is it a truly fixed mount, such that the character has to aim by shifting their body? Or is it something that can track their head movement (possibly meaning it's actually mounted to the head; this might only be an option for low-powered firearms, like pistols and maybe SMG's/PCC's) to shoot at what they are looking at? Those seem like they'd be two different specialties - Guns (Fixed) and Guns (Gaze), with the latter possibly sharing a default with Innate Attack (Gaze) (much as I've suggested in the past a Guns (Wrist) sharing a default with Innate Attack (Projectile)).

At lower TL's (probably up through TL 8 or so), Aiming would require some sort of drop-down sights. If we imagine the weapon simply as a more traditional one mounted upside down, you'd just install a riser of appropriate size to get the actual sights - iron, reflex, scope, whatever - down to eye level (note this means the weapon needs to be long enough for the barrel to project out in front of your face; a back-mounted pistol you aren't going to be able to use the sights for unless you've got some sort of extender that does project out far enough). For Guns (Gaze), at lower TL's you'd probably be restricted to head-mounted if you want to get full Acc out of the weapon, as the sights aren't going to line up when your head is turned (you'll get full Acc - and be able to use the scope - only when you are positioned as though it were a fixed mount). HUD links would avoid this drawback, so for TL 9+, Guns (Gaze) may be the way to go. I'm not sure if a back-mounted weapon would have reduced ST requirements or increased ones, honestly, although I suspect those that track your head movement would have higher ST requirements (recoil would be harder to deal with when firing off-center).

It’s a setting that does have power armor, so maybe the normal ones you’d find most people using could be the fixed mount variant that you have to aim by shifting your body, meanwhile the power armor variant could have head tracking and a HUD link?

Another feature of the setting is they have specially designed pistols that they shoot with their mouths. Again, not the most realistic, but it’s a feature of the setting. I think that could easily just be another specialty for Guns.

[Varyon]

Originally Posted by Keyboardstalker

It’s a setting that does have power armor, so maybe the normal ones you’d find most people using could be the fixed mount variant that you have to aim by shifting your body, meanwhile the power armor variant could have head tracking and a HUD link?

It actually occurred to me that you don't necessarily need the risers to be able to use the weapon's sights - you could have a sight of some sort (I imagine Reflex/Red Dot would work best) built into the helmet. For normal ones, you might have it setup so the sight signals to you when you're actually in-line with the aimpoint of the weapon; for the ones that track head movement, you may be able to design it so the dot moves appropriately as they move their head back and forth (heck, that should be just as doable for fixed-mount). You'd want that sight to be retractable (particularly if it's a scope), perhaps using your tongue to flip a switch or something (Heinlein had some bits in Starship Troopers where the Mobile Infantry used their mouths in various ways to work some of their gear that might be worthwhile here). Subvocal commands would also work. But, yeah, fixed mounts normally and head-tracking mounts for those in power armor or similar would work.

Originally Posted by Keyboardstalker

Another feature of the setting is they have specially designed pistols that they shoot with their mouths. Again, not the most realistic, but it’s a feature of the setting. I think that could easily just be another specialty for Guns.

I'd probably have it use my suggested Guns (Gaze) skill, as it would track with your head. I'm assuming this is in the form on headgear; if it's something they actually pick up with their mouth and fire using their tongue (firing by biting down harder is going to result in a lot of ND's; tongue-firing may as well, but not as much), that would probably be its own skill... and call for a trip to the dentist.

Originally Posted by johndallman

Presumably they can rely on having someone around to put the harness on and remove it for them?

Depending on TL, the harness may be able to attach itself - just wiggle in and activate it with your voice and it secures itself, ready to go.