Complex sentence: At around 02:30 am 25 October Ukrainian positions near the village of Pisky were fired at by the rebels during an hour--small arms, heavy machine guns, anti-aircraft systems, and various types of grenade launchers were used.
Split into simpler sentences: At around 02:30 am 25 October Ukrainian positions near the village of Pisky were fired at by the rebels during an hour. Small arms, heavy machine guns, anti-aircraft systems, and various types of grenade launchers were used.