Molecular orbitals and "generalized" aufbau principle for heteronuclear molecular configurations
Do the molecular orbital configurations and their order depends on the scheme and the linear combination of atoms (homo and heteronuclear, di and poliatomic) 


Not only orbitals arising depends on atom configuration, but also on atomic orbitals available (s,p,d) and their ordering depends on geometry (i.e. size) and relative energy of atomic orbitals available. Unfortunately, there is no simple rule here.

Lucky enough, there is some amount of free computational packages you can use to calculate and then visualize molecular orbitals.