They are I think going for big battalion games with multi bases, from my experience with Front rank, March poses are the best bet, especially to protect the bayonets
Yup. For games like Sharpe Practice skirmishers and firing poses are nice, but when you want to rank up hundreds of them marching poses can't be beat. It also makes them paint up slightly more quickly, at least for me, when they are all in roughly the same pose.