I got to playing with Blender's sculpting mode recently, and accidentally made this. I thought it would make for good terrain. I used the Space Marine head and Carnifex head from Garin's models on the Spears. I may or may not create special rules to make this a playable piece instead of just terrain, I haven't decided. Also, some of the parts are not perfectly aligned with the bed, you might need to separate them before you print. I use Cura to do this, it seems to work fine.
0.2 mm / 0.1 mm (for smaller parts)
F.Y.I., I'm not using the play, I'm using an old Printrbot Plus V2.
The largest parts are just less than 8" length and width. To add blood, try mixing water effect with red food coloring, it should work. The small cubes are connectors, they are meant to hold the parts in place while gluing.