Please write what these signs mean (Call of Duty: Warzone)

When you play, at the very beginning there is a triangular with an exclamation point, it happens to be yellow and krs, there is still a badge almost the same, there is a arrow there.
I can't play because of that.
I fall to kill because lags are terrible, and the badges are constantly these./
There is already one he is constantly burning, it looks like a armor, I can not find another pro definition.
Who can tell you what it is?