Okay. Warning, a long post and lots of comments coming up.
First things first: While thinking “cool” weapons to add is all fun and nice, you need to think how they would be implemented, and (I think) more importantly, what new things will they bring to the game. After all, the development company (AKA Fatshark in this case) has limited resources, and a willingness to enhance the game, not just take our money away. (The latter may not apply to AAA companies.) So I think, when figuring out new ideas for weapons, consider what it will bring to the game, how will it compare with other weapons, and how could it work in-game.
Then, some comments on already presented ideas.
Throwing Spears (AKA Javelins) might be neat, but I find them somewhat redundant. Your idea would bring them to competition with primarily the Handgun, with dmg output and AP, and that’s already in need of love. Career-wise, I think they’d be more suitable to Merc than Huntsman. If a niche for them could be figured out, though, I would like to see them.
Pistol and Buckler: More Victor’s style, I think. cool idea otherwise, though. If you want to get more exotic, gun shields might work too. Google them, they’re a thing.
Lance is solely a horseback weapon, but your description reads more like a Pike, AKA a very long spear. Kinda interesting, would turn Markus into back-line melee.
Nothing to add on GL, others have commented on the lore already.
Gauntlets: Hmm… An even more mobile option for Slayer… Hard to balance, I think, but interesting.
Scoped Rifle: I’m not sure if a sniper weapon suits Victor, otherwise why not.
Cat o’ Nine Tails: Whips in general are difficult, but this one especially. It was (and kinda still is) an instrument for torture and punishment, made to hurt and break bare (human) skin, not a weapon. As such, it would be practically useless on anything beyond slaverats, realism-wise. Hard to see a purpose in-game either that two-hander or others don’t already do.
Katars: I kinda think they’d be hard to differentiate from Dual Daggers. Might work as a weapon illusion for those, but otherwise, I think they’d be just exoticism for its own sake.
Spear and Shield: I already have wailed on this in another topic, but in short, I think they wouldn’t bring much beyond another Stamina shield, and would actually work against Kerillian’s and especially Handmaiden’s fighting style of high mobility. That said, this was my first thought for a possible new weapon too. Your specific thoughts, wide sweeps don’t really fit that. Try swinging a long stick on one hand for yourself to see.
Firewall Staff: Not much thoughts on this. Might see use as a dedicated area denial weapon, but otherwise I don’t know.
Censer flail: Hmm… Why not. I’m already kinda disappointed for the lack of dedicated melee option on Unchained, this might fill it.
Sickles for Sienna: Why not. Kinda hard to think (for now) what it would do, but I think it’s still feasible.
Ranseur (or other polearm) for Sienna: Not Sienna’s style, I think, and on other characters would compete too much with existing weapons. Purpose-wise, I think you’re on to something here. A dented magic staff might work better, used as a blunt instrument.
Great Flail: Well, there are already a few two-handed versions of weapons with the idea “same, but more” so why not. Might be limited to Zealot, though.
War Scythe: Well, you already voiced some of my thoughts yourself. I don’t think it would necessarily fit Victor’s style either. And as a bonus, a reality check: “War scythes” didn’t exactly exist historically. Peasants might’ve used scythes on battlefield, but they were likely to be modified by turning the blade by 90 degrees to be simple polearms or spear-equivalents instead.
Sword and buckler: Quite sensible. Would trade some offensive capability (in the Rapier’s case, the pistol) for defensive. Rapier and Dagger might also work.
Goedendag: Never heard of this one, but with the amount of combination weapons in history, it’s no wonder. Might work as a crowd control option. Also, yes, people have tried to stick guns in just about everything. Shields, swords, maces, even cutlery. Some of these might offer interesting variants.
Duckfoot pistol: Yeah, why not. Would be more Victor’s style than blunderbuss, anyway. And what does goofy-looking matter? He already has that lump of iron known as Repeating Pistol.
Doomflail: Yikes. Realistically, I can’t think how that could work. Game-wise, I don’t know what that would bring that Bardin’s two-handed weapons already don’t.
Seax: Well, seax as such is a very cheap weapon, the mass-produced umgak of its time, so that’s not quite Bardin. But the style might work, even if I can’t see what new it would bring to Bardin’s options.
Dwarf pistol: Not bad, but might step on Repeating Handgun’s and Repeater Pistol’s metaphorical toes, as well as Drakefire Pistol’s.
Throwing axes are obvious, yeah. Stylistically nice, but once again, not sure what they would bring to the gameplay.
Trollhammer Torpedo: Don’t know about this one, as I’m not that familiar with WH lore. Sounds like it might be cool, but not really fit in the game’s general style.
Dual-wielding in general doesn’t fit Sienna, in my opinion (she’s a Wizard, after all, not an ambidextrous fighter) but the Fireclaw gloves might be fine. Wide attacks, damage focused on DoT would make an interesting fight.
Trueflight bow in any form would be too good; see how much even her Career skill gets used and called out for its strength (although that has lessened nowadays).
Handmaiden feels like she could use a dedicated weapon, but see my comments above for the shield. Double spear feels… Out of place for me.
Whip is, as I mentioned above, difficult. A mundane whip doesn’t penetrate armor (or much clothing, for that matter), doesn’t stagger, and is almost impossible to use in crowded spaces. A fire whip for Sienna would work better, though. good reach, damage focused on DoT, not much stagger or sweep. Unchained’s choice, probably.
Finally, a few ideas of my own.
Slayer might benefit from dual hammers (or axe and hammer). That’s already been mentioned elsewhere, and acknowledged by the devs in the release stream. It would give the Slayer a crowd control option that fells more suitable than two-handed hammer.
For Handmaiden, I think a quarterstaff (modeled on the English one, not Bo) would be a better option than shield combo. Still a naturally defensive weapon, wouldn’t hamper her movement like shield might, and would bring a crowd control option into the mix instead of her eternal blades. Also quite elf-like weapon, at least in general, not sure in WH lore though.
And yeah, I think too that more career-specific weapons would be welcome. Unchained especially needs a somewhat stronger melee option than Sienna in general, and would benefit from a slightly more defensive option in my opinion.