If space marines had maybe been fighting for a long time and had damaged their armour so bad that it had to be removed do you think that you could use catachan arms to represent this?

What are your thoughts?

I guess that would work. But you would have to scratch up the rest of the armour to go with that story. You would have to modify the arms a bit so they would hold the bolter right but that's about it.

Well i thought of actually making it so that the marines had a peice of shoulder pad. It is basically an ork shoulder pad without spikes like a bit of the pad has survived. The rest is simple. Use a moddeling knife here and there and cut peices off to make it look like theyre battle hardened.