Battlefield 3 retro style military scene, ultra-realistic 1:1 scale rock formations. The model should feature rough textures, cracks, and weathered surfaces with signs of erosion. Include sharp edges, broken pieces, and moss or lichen growing on the rocks. The formations should look natural yet battle-worn, with dirt and small debris on the surface. Use muted colors and focus on detailed, realistic decay that fits the gritty, post-conflict atmosphere.