Complex sentence: They would be reinforced by a 36 men strong platoon of airbornes (3rd platoon 11./Fjr1) that was scheduled to land at the football stadium of Feyenoord, close to the Nieuwe Maas.
Split into simpler sentences: They would be reinforced by a 36 man strong platoon of airborne soldiers (3rd platoon 11./Fjr1). They were scheduled to land at the Feynoord football stadium, close to the Nieuwe Maas.