Complex sentence: Rugeje was successful in leading missions against the Mozambique National Resistance (RENAMO) as he was commander of 1 Commando at that time and crashed a revolt by the MNR from his base in Tete Province.
Split into simpler sentences: Rugeje was successful in leading missions against the Mozambique National Resistance (RENAMO) as he was commander of 1 Commando at that time. With 1 Commando, Rugeje crushed a revolt by the MNR from his base in Tete Province.