Hello, Gary Anderson
We do not have a particular policy regarding participation. All we ask from our members is that you show up when you are able, we understand and stress life comes first. So to my knowledge as an Officer in the 6th Louisiana, you can never be removed from the Regiment for being on leave (just let your higher ups know about you being busy) the only way I could see someone removed is if they never ever show up.
So, the answer is simply show up when you can, and when you do show up give us your full effort. We do have a schedule however as you see above, Sunday and Mondays are our most important days for our unit.
If you have any more questions feel free to ask.