Defending is only half the battle. Infantry must also attack. The tactic used is called "Fire
and Movement".
An infantry group works in pairs. When advancing, and enemy fire is expected (or being received),
the pair uses the following procedure:
1) One member of the pair (we'll call him soldier "A") takes cover, and begins firing at any
enemy positions that are visible (trying to keep their heads down).
2) The second member (soldier "B") finds something he can use for cover, THAT CAN BE REACHED
IN THREE TO FIVE SECONDS AT A DEAD RUN!
3) While soldier "A" covers, "B" runs three to five seconds to the cover they selected earlier,
taking cover as quickly as possible.
4) Having just taken cover, "B" tries to pin the enemy down, while the "A" dashes to another
piece of cover, three to five seconds away.
5) They repeat this process, leapfrogging forward, hopefully keeping the enemy facing them pinned
down until either the team lobs a grenade into the enemy position, or the enemy, realizing that two such determined and skillful
infantrymen are closing remorselessly in on him, surrenders.