|“||Fitted with all-terrain tread, the Highlander brings significant all-terrain mobility and performs especially well in snowy and mountainous environments.||„|
|— In-game description|
The O'Brien v.121 Highlander seats a crew of 2 (1 driver, 1 gunner), both safely enclosed in the vehicle.
It's armed with the same twin barrelled 7.92mm machine guns as the O'Brien v.110. It has a 30 round magazine, a moderate reload time, and a 5 rounds/s fire rate. Despite the machine gun’s capability of 360 degree rotation, the rotation speed is relatively slow. The gun has terrible accuracy and must rely on its high fire rate to hit anything reliably. Even with this, most bullets will miss when shooting at targets past 25m. Luckily the accuracy is stable through long bursts.
Health & Armor
Even though tracks often suggest hard armour, the Highlander has the same light armor as the standard AC. It's able to soak small arms fire and shrapnel but anything else should be considered a dangerous threat. It won't last long when faced with heavy calibers, heavy explosives. Anti-tank weaponry is almost always a death sentence.
The vehicle's treads do not count as actual tracks that can be disabled, unlike every other tracked combat vehicles.
The treads offer increased off-road mobility over the standard O'Brien v.110, especially on snowy and mountainous terrain. However it's slightly slower on roads. Its treads also allows it to turn faster. Its engine has a high fuel consumption rate which reduces the vehicle's autonomy. Any long term use will require a reliable source to refuel.
The Highlander movement isn't affected by Snow Storms.
Due to the vehicle's mediocre speed off-road and slow turning turret, it is better to stay on roads so you can react faster if you're getting flanked. Another reason is that a single Anti-Tank Mine nearly kills it. Like the other offensive vehicles, it's strongly advised for the crew to wear gas masks and filters once Green Ash is unlocked. It's also better to not use the car at night due to the limited visibility.
On The Front Line
Against a fortified position, it's advised to use the O'Brien backward (rear to the enemy and turret facing back) to allow a quicker retreat, because the vehicle is faster when moving forward and its armor identical on all sides. As the gun has mediocre accuracy you'll be often forced to close in to be effective. This incentivizes a hit & run tactic (especially effective on bridge fights). However, the AC is much better suited to attack enemy infantry out in the open, rather than to push enemy defensive lines because its small caliber can only suppress defenses and not damage them.
Once heavy anti-tank weapons are unlocked the O'Brien becomes pretty much obsolete on the front line, because many of those outranges the O'Brien's inaccurate gun, kill it very quickly, and the vehicle lacks a spotter position to warn the crew in advance.
The standard ACs equipped with machine guns are excellent against small groups of enemies attacking your back lines on foot or with a LUV since they rarely have the heavy weapons, the numbers, or the defensive positions to kill an Armored Car, especially early in the war. However it's not advised to fight a Landing APC if one attacks your back lines due to the high chance of it carrying heavy weaponry.
During Snow Storms
The Highlander's movement isn't affected by Snow Storms. It is the ideal MG mounted vehicle during snow storms because the Half-Tracks, Landing APCs, Field Guns and the open top Armored Car variants cannot be realistically used then. This leaves the Highlander and other closed-top Armored Cars as the only usable combat vehicles during snow storms before tanks are unlocked.