I have played the portal games and heard that this is somehow connected but the only problem is that im not sure its for my age. what age would you reccomend this to?

One of the best even

Why not? I still play Multiplayer on the Crossfire map with great pleasure. (Of course I also like Singleplayer.)

Im not saying this due to a crippling skill issue, I just think it ♥♥♥♥♥ with the balance. Every single server I join has atleast one terminator ass player thay kills everyone from across the map through walls and ♥♥♥♥ using this thing. Its also buggy as hell with stuff like light fixtures making its blast radius kill everyone in new mexico. am i the only one that feels this way?...

Can be from any npc in Half-Life series especially VOX announcer. An example of mine is G-Man: "Cleverly done, Mr Freeman. But you're not supposed to be here..as a matter of fact...you're not. Get back where you belong and forget about all of this..*Inhales* until.....we meet.....again."...