Defeat chroma is unfair, it is a big progress block.

[GladiatorDragon]

I personally never had a problem, and hardly ever noticed when I shredded him (twice). Perhaps it was because I had a high-damage tactic at the time involving the Volt's speed boost and my melee weapon, and I killed him so fast that whatever offensive capabilities he had didn't matter, only a couple days into the game at that point. This game doesn't handhold you at all (one of the things about this game that I personally like, but others may dislike), leaving the player's path to success broad, but it doesn't guide you much. I play this game like a Hack & Slash, using my Dual Ethers to shred everything in my path, and, with my Valkyr Warframe (my second one), go into hysteria every time I see the opportunity or necessity. I get others will have difficulties, but I never had any, personally.