For 3 points and a gear slot this upgrade adds the Unhindered keyword to a unit, allowing them to move past difficult terrain without the speed penalty.
At 3 points environmental gear is very affordable and the benefits are almost always useful. Most tables will have barricades or difficult terrain that offers cover that troop units will want to be near, and may being able to move over them at some point is very benneficial.
Environmental gear is very beneficial to units that rely on their mobility or units that want to be in and around cover to increase their survivability. This upgrade is almost essential on melee units like Luke, but if you have spare points and gear slots this upgrade is good on almost every unit.
Leia Expansion, Veers Expansion