Ultraviolence
Scud is, at its core, an action comic. It takes place in a world where robotic assassins ("Scuds") come from vending machines. After destroying their targets, the Scuds self-destruct to erase all evidence of the murder.

Our particular Scud is hired to kill Jeff, a plug-headed female monster who has mouths on her elbows. About halfway through a gunfight with her, Scud sees a warning label on his back: "THIS UNIT WILL SELF-DESTRUCT UPON TERMINATION OF TARGET." Not wishing to die, Scud shoots off Jeff's arms and legs, puts her on life support, and has to take freelance assassination jobs to pay for her hospital bills.

This entire set-up basically serves as an excuse to throw Scud into ridiculously large gunfight after ridiculously large gunfight.

It's cool to be a robot 

Scud: The Disposable Assassin has an incredibly violent but light tone that I can only describe as "happy nihilism." Scud doesn't fight for any real cause or purpose other than self-preservation: his actions have no positive or negative moral connotation so much as they're just meant to be cool for the sake of being cool (at one point, a malfunctioning Scud makes himself a crown of barbed wire and shouts, "I'm Jesus with a laser gun...and you're all going to hell"). Bad guys exist to be killed, good guys exist to do the killing; it's not exactly Shakespeare, but it doesn't have to be -- it's just plain cool.

Cinematic illustration

Out of all the comics I've read, Scud is by far the most cinematic. Rather than composing its panels in a simplistic, Watchmen-esque way, or a "look how pretty my drawlings are" Brian Michael Bendis sort of style, reading an average issue of Scud really feels just like watching an action movie. It's difficult to explain using text (imagine that the panels are a slideshow, and the action in them is directed in such a way that you read the panels really fast and they meld together in your head to create a sort of continuous film reel), but Scud is one of the most entertaining, kinetic, totally visual comics I've ever read.

Pop culture heaven

If its happy nihilism didn't clue you in, Scud was made by a Gen Xer, for Gen Xers. It's chock full of more cultural references than a Tarantino and Kevin Smith movie combined. In fact, the main villain only speaks in pop culture soundbytes; every issue in which Jeff says something comes equipped with a glossary in the back, explaining where Jeff took the line from (throughout the course of the series, she shouts everything from "I SINISTAR, I HUNGER" to "Just like eatin' death on a cracker!").

The android gangsters are modelled after characters from Goodfellas, Voodoo Ben Franklin (another main villain) commands an army of undead zoo animals, and the trade paperbacks include suggested voice talent for each of the characters -- Scud is made by people who love hilarious violence and absurd pop culture as much as you do, and it shows.

It's finally back

Roughly a decade ago, Rob Schrab stopped writing Scud because (A) it wasn't making him any money, (B) he got dumped, and (C) it was kind of beginning to suck. Now that he's working as a successful Hollywood writer (he worked on Monster House and The Sarah Silverman Show), Schrab's finally returned to complete his first and best creation. Issue #21 came out earlier this month, with three more concluding chapters slated for the months to follow. Finally, after almost fifteen years, Scud draws to a close.

You should be there when it happens.

It's by the dude who made Robot Bastard and Heat Vision and Jack

If all that wonky text didn't sufficiently convince you as to the awesomeness of Rob Schrab and Scud, then I'd highly suggest you watch Robot Bastard and Heat Vision and Jack. Robot Bastard may be one of the best short films ever made, and Heat Vision would have unquestionably been the single greatest television show in the history of the medium had it been picked up. If you love these, go out and buy Scud for more of that sort of stuff. If you don't love these, fucking kill yourself.

You can check out Heat Vision and Jack above, but Robot Bastard is available here (why Schrab didn't put it on YouTube, I'll never know).