I recently tried Yacoby's ownership indicator and find it really useful. Yet, I didn't like the red crosshair much, it was too simple to overlook. So I thought something more like Oblivion-style crosshair would be suitable. And so I created these.
There are two new crosshairs - One transparent(a bit smaller) and one opaque. I recommend to use them with vanilla crosshair only, as I haven't tested them with any custom crosshair.
Transparent: http://fc04.deviantart.net/fs70/f/2013/303/9/9/transparent_ownership_indicator_by_wh_reaper-d6se3my.jpg
Opaque: http://fc09.deviantart.net/fs71/f/2013/303/c/6/opaque_ownership_indicator_by_wh_reaper-d6se3qk.jpg
Download: http://www.mediafire.com/?5wmj84vaqmarqrp
I hope you will find them useful