Complex sentence: All higher-powered weapons were then designed on the tricorder model, however the Zorch launcher and Phasing Zorcher were modified again toward the end of the design phase to have a more distinctive look.
Split into simpler sentences: All higher-powered weapons were then designed on the tricorder model. However, the Zorch launcher and Phasing Zorcher were modified again toward the end of the design phase to have a more distinctive look.