Alternate attack

Related:
* Selective fire - single, burst, auto.
* Secondary attack

This NOT for using scopes or iron sights on the guns.

Note that this is alternate attack with the same thing, not alternate attack with something else.

So player having a punch attack and kick attack do not count. Player having a light punch and heavy punch would.

Commonly the alternate attack is more powerful but slower, has fewer ammo, may be potentially harmful for the player and so forth.

Examples:
* Primary attack is weak punch/kick, alt attack is heavy punch/kick
* Short zap with a laser (pulsed), alt attack is constant burn beam

Limitations:
* Combo weapons: although alt-fire is often the key called when firing the secondary weapon, this is not really alt fire any more than wielding two pistols and claiming the second pistol is alt fire.