Like Snatch, but with cyberpunk (sort of)

The setting is inspired by Ghost in the Shell, but the game itself would be a lot closer to Shadowrun. Full-body cyborgs* exist, but are uncommon. The PC just so happens to be a full-body cyborg. Since he's an enforcer for a mobster, this comes in handy. One day he tries to screw over his boss, and gets put in a sexbot for his disloyalty. His first task is to shut up a mole for a rival mobster. It's possible to sell yourself to the other guy, but only if you do it right.

From here, you have a few options. Work for your boss and gradually regain his trust, or betray him and work for his rival. Each path has its own quests and storyline associated with it, as well as an ending.

Or, you could try to take down both bosses yourself. Might not want to do this right away, though. Keep doing jobs and making friends. Buy a safehouse. Once you're well-connected enough, you might just be able to pull off a mutiny. You can do it any time you want, but you might want to check if your friends have your back.

You upgrade by buying better bodies, armor, weapons, and firmware. You can also upgrade what you already have. Since your inventory is limited to what you could realistically carry, it's a good idea to invest in some built-in tools for your body. All the bodies you buy stay with you, and you pick which one you want to use for the mission. You can also arrange for a drop at a predetermined location, in case you need to swap during the mission.

*People with just a brain and some spine to call their own. Everything else is robotic.

Two more weapons

These ideas have been in my head for a while now, and I might have mentioned them before. For some reason, I've never written them down before. I typed this up after I read this thread on the TV Tropes fora.

Modded Jackhammer
Setting: Near-future, with a ton of Black Box-driven future tech
Plausibility: Possible, but might be cumbersome, unreliable, or inefficient
Pretty much exactly what it says on the tin. An auto-shotgun based on the Pancor Jackhammer that can fire three different kinds of ammo. I might discard the Jackhammer idea however, and use an original design. Possibly one with three barrels, one for each ammo type. Said ammo types are; Standard 12 gauge shell, Dragon's Breath, and slugs.

Lightweight SMG
Setting: Same as above.
Plausability: Would probably work
A smallish submachine gun with a large cylindrical magazine. The main gimmick is that it's meant to be held Guns Akimbo. The recoil is low and the ammunition is caseless, so you don't need to worry about ejecting shells hitting you in the face. I even made a model in SketchUp. It also has a grip and laser sight in case you only have one, or don't have the Powered Armor it was designed for. (Said Powered Armor includes sight lines extending from the barrel as part of its HUD)

A character and some weapons

Gasp! A new post! Anyway, I've thought of quite a few things for Leonidas or Whatever I'm Going to Call This* over the past few days, such as weapons, a new character, and some badass creeds for the characters. Without further ado, let the blah commence!

Sniper: I'm not sure what to name this guy, mostly because I haven't decided on his heritage and personality. His weapons are an Akimborama** personal defense weapon for close encounters, and two shoulder-mounted computer-aided low recoil sniper rifles described below that are attached to his suit. He takes good care of them.

He will not be a Cold Sniper, but I haven't decided on his personality yet.

Sniper's special rifle: This isn't a customized rifle. This is an entirely new design built by RND specifically for its owner. It is a very long gun, almost Freudian in its proportions. The fact that it is also a part of its master's suit helps him steady the gun and handle the recoil. The gun is also entirely ambidextrous, allowing two of the beasts to be attached to one suit and subsequently dual-wielded.

It also is on a slide for when not in use. when the gun's master no longer needs his trustworthy companion, he will simply raise it up and slide it down along a mechanism built into the weapon. Once the gun has found its temporary resting place, it fits snugly across the back of its master's suit. When the weapon is needed again, it can be brought out is a second. Reloading is equally painless, as the magazine is stored on top for easy access and replacement.

If some long-range sniping is required, the gun's onboard camera will activate and zoom in, augmenting the user's manipulations of the controls with its own fine adjustments. The gun's master need not look through the camera itself- he can look through the camera and see what his gun sees. The controls are located on the handle for easy access.

Another fine feature of the rifle is the Gauss Accelerator at the end of the barrel. When the gun is fired, an electromagnet at the end of the barrel will activate, assisting the stalwart bullet on its journey. Once the projectile has passed, the electromagnet's job is done and thus it deactivates.

Super-silenced pistol: A long-range pistol used by this guy for when he needs to be stealthy. Considering his audacious personality and the company he keeps, it doesn't get much use. The design is now being used by the Japanese military.

The pistol is pretty normal, except that it uses rather large ammunition (caseless rifle rounds) and is entirely encased in a soundproof plastic and rubber combination. Because of these factors, the only sound from the gun that is audible to the ear is the click of the trigger, which is not covered for obvious reasons.

The weapon is notable for being completely silenced, yet very powerful due to the chosen cartridge. However, because of the chosen ammunition, the handle is somewhat long and has been padded at the sides to make up for this. The rounds are also slanted, and pushed into their correct position when loaded into the chamber.

The result is a totally silent handgun that can blow your arm off. What's not to like?

*I'm thinking I might use "Wars of Our Sons" as a title. How's that sound?

** Designed to be dual-wielded, but works great if one is held with both hands.

SiGL

The Shield Grenade Launcher is an interesting support weapon. It fires a sticky grenade that projects a spherical shield after about a second after it latches onto something. The shield has a radius of about one meter and lasts for twice the amount of time you charge it by holding down the trigger. The maximum time the shield can last for is 15 seconds.
The primary fire will let things go out of the shield, but not in. The alt-fire does the reverse.

There are many tactical uses for the SiGL. For example, it can be used to render an enemy helpless via the alt-fire, or it can serve as a shield for an ally. You can also use this to temporarily block a path as well.

Please note that SiGL grenades will bounce off of existing shields.

Express your own tactics in the comments.

Weapons for World War III (BLADE)

Magnum- Not your regular gun. Then again, nothing at BLADE ever is. It acts like a regular eight-shooter, but it uses explosive charges. The alt-fire lets you unload the whole gun at once. The barrel spins for about a second, then it fires the charges in rapid succession.

Coilgun Targeter- Does just what it says on the tin. The gun does function as an assult rifle, but its real power is the alt-fire, which puts an infrared target for the overhead Cruiser to open fire with its coilgun. It takes about half a second to aim, fires, then takes about half a minute to reload and recharge the coils.

Minirocket Launcher- A minirocket is basically a powerful grenade with wings. These were developed to make Rockets more accessible to infantry. Also, the size of the ammo allows for six minirockets to be stored at once.
Allows for fire-and-forget and LASER-seeking modes.

Springsword- A katana that has its blade contracted when not in use via matter compression techniques. Named for the kinetic force made when the sword is 'unsheathed'. Because of this, many people put the sword to an object and spring it for massive force.