Complex sentence: Ancheta joined Firpo in the quest to regain promotion back into the primera division, However In their first campaign despite going 16 games undefeated in the regular season, they were knocked out in the quarter final.
Split into simpler sentences: Ancheta joined Firpo in the quest to regain promotion back into the primera division. However, in their first campaign, despite going 16 games undefeated in the regular season, they were knocked out in the quarter final.