Combat Master 2011 for Bonelab is a free mod designed for Windows that enhances the gameplay experience with extensive customization options. The program features a fully customizable user interface, allowing players to tailor their combat environment to their preferences. Users can choose from 14 unique, hand-made skins and mix and match various gun attachments, including suppressors, holosights, and lasers, ensuring a personalized combat experience.

One of the standout features of this mod is the attachment breaking mechanic, where all attachments can break upon being shot or struck by blunt objects. This adds a layer of realism and strategy to gameplay. Additionally, the high-quality sounds and materials enhance immersion. Players can easily access the customization UI by pressing Y/B on the secondary grip, making it convenient to explore different combinations of skins and attachments.