the real answer is you can't become a fire red or leaf green gym leader and if you can let me know because I've been playing Pokemon for like 5 years now and so far i havent seen anything about being a gym leader
no
Giovanni
saffron city (psychic type gym leader)
The 7th leader is Blaine. He uses fire pokemon.
water or grass type Pokemon
no
The Gym Leader that allows you to use the HM move Strength in Pokemon FireRed is Erika. Erika is the Gym Leader of Celadon City and is the 4th Gym Leader the player faces.
beat the gym leader
Giovanni
saffron city (psychic type gym leader)
there is no gym leader in lavender town
charizard
26
The 7th leader is Blaine. He uses fire pokemon.
You cannot be a gym leader yourself in any of the Pokemon games, so far.
Viridian City.
None he's not in firered.