The setting is awesome. The way you used the havoc engine feels really solid.
The mechanics feel really solid. I particularly like the heat mechanic on the weapons. I also like the injuries table.
The characters are great and each has a very distinct identity. I really like the inclusion of the name/look/trait choices to personalize the character to the player while still keeping the options tied up in the identity of the character concept.
Good job minimizing crunch by reducing the foes roll to just 1d6, while also preserving some of the scaling by including mutliple attacks under some results but not others. As it exists, I do wish there were either a few more foes or each foe had more swings to help increase variability of confronting foes.
For a 7 page submission, there's a surprising amount of depth packed in. Excellent job distilling the game to its most simple components and running with it.