Add spaces: AtFortHalsteadRankinworkedonthedevelopmentofrockets.

Answer: At Fort Halstead Rankin worked on the development of rockets.

Add spaces: Suchabuildingwouldstillbe25%cheaperthanaconventionalconstructionbuiltto2010standards.

Answer: Such a building would still be 25% cheaper than a conventional construction built to 2010 standards.

Add spaces: Distinctlymoremegapixel(photo,frontcamera)

Answer:
Distinctly more megapixel (photo, front camera)