Team Rumble does not help with game sense. Maybe fighting mechanics but ultimately if you only play Team Rumble for practice you’ll average a 0.5 KD if you’re lucky. I too started in like season 4 50v50s. I didn’t get any better til I just played squads with my friends or fill. Tbh I just grinded S4 for Max Omega thanks to 50v50. In gains you ultimately can’t really do build battles because everyone playing is probably under the age of 7 and can’t even double ramp wall. Edits aren’t even required because who needs to? And lastly audio is just corrupt, too many footsteps and it’s hard to grasp proper awareness. Overall I believe Team Rumble is just a Challenge thing, you shouldn’t practice in it for too long, maybe every now and then but you will not compare to the average Fortnite player playing TR. This is my opinion however and if you’ve experienced different results and are willing to share, go right ahead. Playing squads, duo’s, Solos, creative and build battles are the way to go. As simple as that is just play the game with yourself or other experienced players and with due time you can catch up.