For a start, a new contract system has been added. These contract will act as the objective in each section. The player complete a contract in one section, then move on to other section to pursue the next contract. The contract varies, some have multiple stages and objective and some are very straight-forward. The spice things up a bit, each of the contract has a set time. The contract is considered failed if it's not completed in time. This should give the player the dilemma to rush or to give the squad time to recover after each battle.
Repair system has been changed as well. The player can choose to repair damaged mech at any time for a fee. However it takes time to do the repair and mechs going through repair cannot be deployed for battle.