What were the tactics used in the Battle of Bull Run?

Answer 1

In first Bull Run, or Manassas, the over confident Federals pushed their early advantage, til reinforcements came up on the rebel side and drove the yankees back to Washington.

In the second battle, Lee used Jackson's corps as an anvil, taking cover in a railroad cut while Pope sent waves of Federal troops at them, each wave being repulsed. Just as Jackson's men were down to their last ammo, and were throwing rocks at their attackers, Lee had Longstreet attack the left Union flank. Longstreet struck like a thunderbolt, and the yankees were routed again.