Warrior Weapon Swap Macro
WoW Classic Era Warrior Macro
This macro will let you swap between your one-hand and shield and your two-hander. When you press the macro, it will equip the items that you don't currently have equipped. Replace "one-hander", "shield", and "two-hander" with the names of the weapons your character is specifically using.
/equip "shield" /equip "one-hander" /equip "two-hander"