Complex sentence: Shanina was mentioned in despatches and her achievements were acknowledged particularly by Ilya Ehrenburg and in the newspaper "Krasnaya Zvezda", which said that Shanina was one of the best snipers in her unit and that even veteran soldiers were inferior to her in shooting accuracy.
Split into simpler sentences: Shanina was Mentioned in Despatches and her achievements were acknowledged particularly by Ilya Ehrenburg and in the newspaper "Krasnaya Zvezda". The latter noted that Shanina was one of the best snipers in her unit and that even the veteran soldiers were inferior to her in shooting accuracy.