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This function is in call of duty 4, there you watch the player constantly until you switch it yourself, after the player's death, he remains visible...

So as not to click the mouse and not look for it again.

I want to do this in call of duty 2, give the right direction where to dig.

If i understand correctly: You spectate a player, the player dies, you want to spectate him again when he respawns automatically? Save clientid of...