Complex sentence: Moreover, the widely spaced wing guns proved unfamiliar to Soviet pilots, as on Soviet fighters the armament was usually grouped around the engine; flying the Spitfire, they found that hitting the target at close range or during violent manoeuvres in a dogfight was not easy.
Split into simpler sentences: Moreover, the widely spaced wing guns proved unfamiliar to Soviet pilots, as on Soviet fighters the armament was usually grouped around the engine. Considering this and Soviet tactics those who flew in combat the Spitfire found that hitting the target at close range or during violent manoeuvres in a dogfight was not easy.