Tip for the character Yuri
Out of every character, Yuri is quite broken. This is completely due to his ability to fly for an infinite span of time and attack from odd angles. This will offer you no assistance fighting enemies; it will however offer you several “safe” zones from turrets. This means you can attack them doing small amounts of damage over time. The AI usually has no clue what to do with you, but you will most likely die due to the large span of time required to destroy one via this.
Similar to Leon, his most important skill is Instant Charge Battery. This is followed by Giant Monocle and finally damage. Do not go for damage first as you will at most do 1 extra damage to the turret with every hit. You also might find Baby Yeti more useful than damage, as you can kill enemies as they're leaving offering you more xp. In any case, this method is all about winning fast so you can get the 5,000 fixed points and should only be done if you're really bad at the game.