Road transport

Road transport are, in the barest of sense, vehicles adapted for road use, although some may also possess off-road capabilities. Road transport is featured commonly in the Half-Life series as both a mode of transport as well as obstacles or cover.

Types of road transports
Road vehicles featured in the series are wide ranging, featuring varieties with either threaded wheels or rubber tires, and encompassing Category:Cars, Category:Trucks, Category:APCs and Category:Tanks.

Half-Life and its expansions
The selection of road vehicles available in Half-Life are confined to those used by the Black Mesa Research Facility, as well as the Hazardous Environment Combat Unit (HECU) and Black Ops. None of the vehicles can be driven, but may feature functional armaments (i.e. turrets) or contain supplies.

The vehicles are listed as follows:
 * HECU: The Black Mesa SUV and Black Mesa truck.
 * HECU and Black Ops: The M35 cargo truck, M1A1 Abrams and M2A3 Bradley.

Half-Life 2 and its episodes
With the inclusion of the Combine and the Resistance as the two factions in Half-Life 2, the player is introduced to a new range of road vehicles affiliated with the two groups.

Whilst the player has no control of Combine vehicles, the Resistance owns several controllable road vehicles constructed using salvaged parts. The Resistance's vehicles in particular are integral to two storyline arcs in Half-Life 2 and Half-Life 2: Episode Two, during which they are used by the player to traverse great distances to a particular destination. The vehicles are indicated to be of utmost importance to the missions, as the player automatically fails if the player manages to lose the vehicles by dropping it onto off-limits areas of the map (i.e. deep water or cliffs).

The vehicles are listed as follows:
 * Resistance: The Scout Car, Muscle Car and Jalopy (cut).
 * Combine: The Combine Armored Personnel Carrier, Advisor Platform, AirEx Truck (cut), School Bus (cut) , Merkava (cut) , M2A3 Bradley (cut) , and Combine SWAT Truck (cut).

In addition, civilian car wrecks exist throughout much of the game. These wrecks are primarily used as obstacles to the player, but may also be punted as heavy projectiles or used to plug Antlion Soldier holes in Half-Life 2: Episode One, both with the aid of the gravity gun. The car traps in Ravenholm also employ such wrecks to crush zombies.

List of appearances

 * Half-Life
 * Half-Life: Opposing Force
 * Half-Life: Blue Shift
 * Half-Life: Decay
 * Half-Life 2
 * Half-Life 2: Raising the Bar
 * Half-Life 2: Episode One
 * Half-Life 2: Episode Two