original: Leading figures included Otto Ernst Remer, a former Major General, and Fritz Dorls.
simplifications: Leading people included Otto Ernst Remer, a former Major General, and Fritz Dorls. Some of the important people were Otto Ernst Remer, who used to be a Major General, and Fritz Dorls. Leading figures included former Major General Otto Ernst Remer and Fritz Doris. Major figures were Otto Ernst Remer, a former Major General, and Fritz Dorls. Otto Ernst Remer, a former Major General, and Fritz Dorls are Leading figures. Major people include Otto Ernst Remer, who is a former Major General, and Fritz Dorls. Leading figures included Otto Ernst Remer, and Fritz Dorls. Leading figures included Fritz Dorls and Otto Ernst Remer  who is a former Major General. Otto Ernst Remer is a former Major General. Remer and Fritz Dorls are leading figures. The leading figures included Otto Ernst Remer, former Major-General, and Fritz Dorls.