M1 Carbine wasn't used in front line battle?

[CINDERS]

Does it really matter how many and who they were issued to as in a CQB situation in a building the carbine would be a handier proposition especially if fully auto with a 30 round mag on it as long as it killed the enemy may take 5 slugs in their chest instead of 1 from a Garand but who cares it did its job and eliminated a threat, the carbine was controllable in recoil you could fire it one handed like a pistol (As I did that at the farm with M-1 ball ammo).
Maybe I am reading to much into the figures given by various people who are well intentioned and we have all been hoodwinked like an Area 51 scenario and the M-1 does not exist or was it the Philadelphia experiment I am getting confused with!!!!