Your training is proceeding well, . You have completed initial training, but before you are fully cleared to use the Slave-class sentinel, you must be tested in battle. Take the Slave to the warzone and destroy the enemy sentinels. On to victory! As you have noticed, you are now in a battle where you can die. You have five extra lives in case you do die, so don't worry. Anyway the first wave has two enemies, both of them are training drones. One of them stays still while the other one moves. As long as you move and use your heavy gun you'll past this wave with little to no damage.