Complex sentence: The Gouf Test Prototype mounted several extra thrusters in its legs to give it the ability to hover short distances across the ground, and it was also given a new expiremental heat sword melee weapon that was substantially larger than the normal Gouf heat saber.
Split into simpler sentences: The Gouf Test Prototype mounted several extra thrusters in its legs to give it the ability to hover short distances across the ground. It was also given an experimental heat sword melee weapon that was substantially larger than the normal Gouf heat saber.