Ask questions related to infantry as a weapon, it's history of use since pre-historic times, Greek phalanx, Roman legions, Medieval pikeman etc. For use of equipment by infantry tags weapons and uniform could be more appropriate.
Types of infantry:
- light infantry -- equipped in small weaponry, to reduce costs and/or increase mobility,
- heavy infantry -- equipped in heavy weapons to perform firm defence,
- mounted infantry -- using horses for transportation (but fighting on feet),
- motorized infantry -- using motor vehicles,
- armoured infantry -- using special armoured vehicles,
- marines -- infantry used by navies to perform off-shore operations,
- special purpose, like mountain infantry, paratroopers, AT (anti-tank) etc.
The infantry troops using helicopters for transportation are, however, named air cavalry.
Other types of land units: