Complex sentence: The attack went well, with the Argylls securing the town by 1030 hours, however, a 0830 a small number of German's caught Wigle's tactical headquarters by surprise, resulting in the death of Wigle and several other soldiers.
Split into simpler sentences: The attack went well, with the Argylls securing the town by 1030 hours. However, at 0830 a small number of Germans caught Wigle's tactical headquarters by surprise; resulting in the death of Wigle and several other soldiers.