Complex sentence: As a result of Tarawa experience, standardized armor kits were provided for the LVTs employed in contested landings, and the gun-armed "amtanks" LVT (A) -1 and LVT (A) -4 were developed to provide fire support.
Split into simpler sentences: As a result of Tarawa experience, standardized armor kits were provided for the LVTs to be used in contested landings. The gun-armed "amtanks" LVT (A) -1 and LVT (A) -4 were developed to provide fire support.