These new vehicles are different from the ones included in the original in that they have more firepower and variation. For example, the Strike-Fighter is a much more versatile aircraft that packs a heavier punch than some of the lesser ground vehicles. The Jericho Forward Base is the coolest new vehicle it can be used as a transport and then becomes a remote base with an inventory station and sensors. Deployable objects change the gameplay as well. Turrets can now be set up anywhere on the map, which can seriously affect the battle.
Some turrets can only be deployed on terrain, others require a metallic surface like a remote base.
You can also deploy health stations, sensors used for tracking other players, and a detonation satchel. These are all significant additions to the game that increase the excitement of the battle and add another whole layer of strategy. New armor packs add greatly to the game. A cloaking armor is useful for sneaking up on the enemy base. Most of the armor add-ons didn't last long enough, which might have been by design in order to retain good game balance.