How is GNB's personal mitigation?

[Kaozurei]

...People complain about camouflage but why? It's not comparable to other CD's on other tanks because they don't have a CD to compare it to, camouflage is basically just extra and who complains at extra mitigation for free?

Camouflage can be compared to WAR's Thrill of Battle, which is 20% additional HP and a heal for the same amount. Camouflage isn't that far behind, but it is still behind when you consider the EHP gained from Thrill.

...Heart of stone is great for the short cooldown, comparable to raw intuition, sheltron and blackest night.

While true, it is only comparable to Sheltron (since block is 15% too, down from 20), but PLD has a passive, permanent block chance in addition to their parry chance thanks to their shield. Raw Intuition provides 20% damage reduction as opposed to 15% and Blackest Night is a massive 25% based on the DRK's HP. While at a glance a 5% difference might not seem like a big thing, it is 5% damage mitigated from a tankbuster that can potentially hit for tens of thousands of damage.

All in all, the cooldowns are nice, they get the job done. I'd say WAR and PLD might have it better but that's them being too strong imo, not gunbreaker being weak.

I also must disagree with this. WAR and PLD have amazing toolkits that get the job done, it's Gunbreaker (and to a lesser degree DRK) that are too weak defensively speaking IMO. That's not to say GNB is a wet piece of paper, but it definitely needs a minor buff to bring it in line with other tanks.

At least a camouflage buff up to 15% damage reduction (20% would be ideal but may be too strong IMO) and bring Heart of Stone up to 20% reduction to keep it in line with Raw Intuition, even if the duration is reduced to match it as well.