Complex sentence: All airborne and ground based flight control software is developed by TAI while payload hardware and software items are aimed to be developed by national sub-contractors, such as Aselsan and Milsoft.
Split into simpler sentences: All airborne and ground based flight control software is being developed indigenously by TAI. In a similar manner, payload hardware and software items are aimed to be developed by national sub-contractors, such as Aselsan and Milsoft.