By the end of 1862 the tactics were changing and open order formations were more common
Trench systems were dug to defend Richmond but fortifications or natural cover were more often used
Cavalry = reconnaissance. Southern general Stuart used cavalry to raid
Scorch earth tactics = Sherman $100 mil damage
Federal veterans were increasingly reluctant to attack so Grant switched to siege tactics. Siege guns, including rail mounted guns failed to end the stalemate (BATTLE of Petersburg)