Complex sentence: Burstadt caused excitment as an overachieving side playing in Hesse's tier III leagues with occasional brave forays into the Regionalliga Sud (II) and 2.Bundesliga where they were the smallest club playing at that level.
Split into simpler sentences: Burstadt caused excitment as an overachieving side playing in Hessen's tier III leagues with occasional brave forays into the Regionalliga Sud (II) and 2.Bundesliga. They were the smallest club playing at that level.