I still have some games that I love to play, so here is another riddle about one.
1) X marks the first part of my name,
but only if you change my angle by aim.
Lastly comes what I shout,
afterwards a rain of bullets comes out.
2) Now you know my host,
but to you I'm still a ghost.
They say that I'm unfair,
where one has guns the other knows despair.
False because they can't be seen,
unless they move then you'll see what I mean.
They say listening is my best skill,
though those who can't be seen will never admit this when I kill.
What is the name of this online game, and which mode did I used to play?
HINT:
1) is about the name of the game itself. 2) is about my favorite mode in the game.