He becomes Thunderclan leader.
Fireheart
Firepaw becomes fireheart in into the wild and later in the darkest hour he receives his leader name firestar (after Bluestar dies).
After Bluestar dies, she is succeeded by Firestar (Fireheart) as leader.
Rusty, or Firepaw's, warrior name is Fireheart.
His kittypet name was Rusty, then he became Firepaw, then Fireheart, then after Bluestar died (stupid tigerstar, grrr) he became Firestar. rusty firepaw fireheart firestar[i hate tigerstar!!!] I agree I hate Tigerclaw/TigerStar :( i hate tigerstar also but he is funny,as a kit in Bluestars Prochey
Firepaw Fireheart or Firestar
Well, honey, let me break it down for you. Rusty is Firepaw, who becomes Fireheart, and eventually earns the name Firestar. So, technically, they're all the same cat with just a fancy name upgrade along the way. It's like a feline evolution of sorts, darling.
He becomes leader in chapter 3 and 4 in The darkest hour.
Fireheart's mother is Princess, a kittypet who lived in Twolegplace. She is also the mother of Firestar's littermates, Scourge and Socks.
Firepaw/Fireheart/Firestar is the main character for a while.
I don't think he kills any cat as Fireheart, but he kills Scourge, evil leader of BloodClan, as Firestar.
Rusty was renamed Firepaw when he joined ThunderClan. Later, he earned the name Fireheart and eventually became Firestar as the leader of ThunderClan. So, in total, he had three different names in ThunderClan.