This Guitar has a floyd rose speed loader with no machine heads.
I've okorder / and download the manual for your guitar. From what I understand chaning strings on a speed loader is pretty easy. The trick with the BC Rich's with the Floyd Rose is actually tuning the strings. They have licensed Floyd Rose trem's and are imfamously tough to tune. I learnt the hard way. If you do it wrong you'll never get it in tune or you'll snap plenty strings. Here's what I do. Open up the back plate of the guitar where the springs are. I've got 4 springs in there. When I do a set up I stick 2 blocks of wood on either side to lock the trem. Make sure it's level on the body. When you change strings do one at a time and get it as close to in tune as possible. If you change all at once you're going to battle. Make sure the fine tune screws are all midway. The issue with tuning a Floyd Rose without locking it is that one the trem keeps pulling tight and eventually a string snaps. There is a way though. (Through the tuning process keep checking that the trem stays level and that your strings aren't getting too tight.) They are also not very easy to drop tune or use other tunings. Start with top E. Tune that to 1 up. Then tune bottom e also to 1 step up. Next tune B to a half step up. Then tune A to half step up. Tune G to normal then G to normal. So the 2 outside strings will be 1 step up. A and B will be half a step up. D and G to level. You should notice that all the strings are more or less in tune. Now you can lock the strings on the neck and fine tune using the brisge tuners.
