Is True Patriot broken on PTS or it's already broken?

Just try the 3 pieces of TP gear set + exotic kneepad+ shotgun & merciless build on PTS.

But seems the Red/blue/white system is broken? How does the White buff works? Neither me or my teammate can't get any armor from it. And the Red buff is still not very useful cause we still don't know how much damage it decrease. Blue is ok as it was.

So is this normal on the current TU5 game or it just broken on PTS?