Complex sentence: However, Angilas and Philomathius with about two hundred of their men opened a town gate exited the town and attacked the nearest force of Sassanids whose archers were harassing the defenders.
Split into simpler sentences: However, Angilas and Philomathius led about two hundred of their men in opening a town gate. They exited the town and attacked the nearest force of Sassanids whose archers were harassing the defenders.