Gone with the Blastwave, Vol. 1

Gone With The Blastwave is a webcomic created by Kimmo Lemetti. It follows a group of soldiers fighting (for reasons they're more than a little hazy about) in a ruined city of a post-apocalyptic world. It "is not a very serious comic", having a lot of Black Comedy - the author advises you to "think of it as some kind of a parody" of more serious post-apocalyptic settings.