Complex sentence: Combat Ration Five Man contains a similar array of components as the Combat Ration One Man, however it is provided in a tough fibreboard carton rather than in individual unitised polyethylene bags.
Split into simpler sentences: Combat Ration Five Man contains a similar array of components as the Combat Ration One Man. However, it is provided in a tough fibreboard carton rather than in individual unitised polyethylene bags.