I love my SCAR 17 and the design. The size of the BCG makes it shoot like a 223 and stock folds if needed. As an all around weapon that can adapt to situations and doesnt require a huge amount of change, I think its hard to beat. If you want to get into specific needs, that is where I think...
Everyone makes vaccines now......I have a new batch growing in the back yard right now in a moldy 55 gal drum. I would trust it more than that bs that is being pushed on everyone. I bet you I could be sued if someone got sick too!