Commander

Commanders can prepare a wide variety of craftable accessories before a match, then customize attributes and talents with each in-game level. Accessories are crafted by combining dropped items to boost commanders’ inherent talents.

A dizzying array of powerful commanders is at players' disposal, ready to lead their armies into battle. Players may choose between mech pilots from the human core worlds or gun-for-hire mercs from the lawless outer planets. Or look beyond mankind and select an alien commander.

Commanders daring enough to challenge and defeat the ancients will be rewarded with planet-razing ancient technology that relentlessly drive through the heart of their enemy’s defenses.

XP

Players collect XP to increase their commander's attributes and masteries for your Commander. Attributes increase overall ratings of each commander, while mastery provides a way to further specialize within those attributes.

Though each commander has a set of abilities they may choose from, there's also another set of abilities (Alliance) that the whole team may choose from.

Items

There are no items in this game, but there are so called "Proficiencies". These are passive perks. Each proficiency has three levels. A complete list of proficiencys is here