Every single Perk Armor etc should have a positive and negative affect.
The Alien and other armors should all have some kind of major weakness. There should be numerous weapons with the similar power levels but different kinds of damage.
every perk for one breed should have a counter perk for another breed.
Evades should have a weakness. no matter how high they are.
attack rating defense rating and evasion (in pvp) should all have some kind of human interaction requirement with a timed duration. It should *NEVER* be game set match if one person has 3500 evades or someone else has 3500 AR.
the way you re redoing parry should somehow be worked in to all evades and attacks.
At least thats my opinion.