Complex sentence: Jacobson also serves as field advisor to biomodified troops during combat operations, although this position is not actually official as of yet, due to the fact that biomodification technology is still undergoing field-testing.
Split into simpler sentences: Jacobson also serves as field advisor to biomodified troops during combat operations. Although this position is not actually official as of yet, due to the fact that biomodification technology is still undergoing field-testing.