first of all i would like to say that after our 3 first games, we love this system, how the map looks in real, etc. (whole game

but we have some questions about rules
1) Joining general into unit. It must be made in general move, or the general can stay in some hex, and when the units move, he can be picked up and continue in his movement ? We know that if je joins any unit , he then can move with them again, but dont know if he can move if he is picked by other unit, or can be picked at all.
2) We used war wagons and they have that Hard Target rule, the enemy shooters cant harm them , but they can surpress them. Is it mean only for small arms ? or any shooting ? We ve been confused that large field gun cant destroy wooden wagon.
3) Shooting into adjacent woodland hex. If enemy is in adjacent woodland hex, we are in hand to hand combat , shooters cant shoot at all. So what this adjacent woodland hex rule mean? I guess that its the first woodland hex that shooters can see and have the range to shoot. so i cant shoot at enemy behind wood hex.
4) If unit attack shooters, they can turn around and shoot on that attacking enemy. How exactly is this shooting resolved ? Enemy unit make contact with them and right after that its resolved ( so i can probably shoot again in shooting phase ? ) or enemy unit make contact, then we wait to the shoot phase and then we resolve this.
5) A and B unit class dont have to follow up ?
6) There is always fight like 1 vs 1 , or 2 , 3 etc. it cant be 2v2 etc. i think its clear , but want to make sure .
Thanks very much for reply.