I have done some searching and as far as I can tell, any soldier who is found to test positive on a CDT will face detention time followed by a discharge, and that includes performance enhancing drugs (including Steroids).
Oral anabolic steroids are often just as dangerous to a persons health as injectables, often more so. This is because oral steroids contain C-17 alpha alkylated which is incredibly toxic to the liver. This is found in extremely high quantities in Anadrol (Oxymetholone), which is the only anabolic steroid to be conclusively linked with liver cancer.
Clearly the risks with injectables mostly revolve around the hygiene aspect of use (storage of needles, injecting drills etc). However steroids also pose a risk when taken in larger doses, users often believe that more is better. However once you understand how Steroids work you will see how these risks can be minimised.
Anabolic steroids are basically man made versions of the hormone testosterone. There are two components to steroids, the androgenic effects and the anabolic effects; androgenic effects are masculine effects such as deepening of the voice and hair growth and are quite often contributors to the side effects. The anabolic effects include muscle and tissue growth. So far science has been unable to produce steroids which separate these two components, hence the acronym of AAS.
Steroid molecules, upon entry to the body, travel around the blood stream looking for receptor sites to latch onto. There are many of these receptor sites around the body including muscle cells and hair cells (the latter can sometimes causes an increase in facial hair but a shut down in the bodies process of growing hair on the head). Three things can happen when Steroid molecules attach themselves to muscle cells:
1) If the user is on a high calorie diet and train regularly, muscle tissue can be built faster because more protein can be used by the body's muscles.
2) More muscle fuel can be stored in the muscles (similar in effect to creatine), making more energy available to work.
3) An increase of red blood cells in the body enables more oxygen to be delivered to the muscles whilst training which improves the endurance ability of the muscles
The main problems then occur if there are too many Steroid molecules with not enough receptor sites. Through a process called Aromatisation, excess testosterone gets converted to oestrogen which often leads to gynaecomastia (bitch tits) amongst others. Before aromatisation occurs, damage is done to the liver and kidneys by the excess molecules.
Side effects can be reduced by the use of anti oestrogen drugs as well as modest doses and plenty of proper planning of cycles with sufficient rest time between them.
Do remember however that they are prohibited in the armed forces and moreover, whilst possession in the UK is legal, distribution and selling is not. This fact means that to obtain AAS, a person must deal with a criminal which could leave him open to blackmail or violence, as well as a breach of the persons integrity. Not to mention that dealers rarely just deal in one substance and the drug trade is a worldwide franchise, which to cut a long story short, could mean that the money your friend spends on his AAS could be used to fund the rounds that are potentially fired at him and his oppos in future operations. Remember those lessons in school where you learnt that drugs are very rarely pure, but often "cut" with other substances such as brick dust and rat poison? Well the same sometimes applies for AAS.
Also because the muscle grows so quick you don't have enough time to develop the muscle fibers which are the key to endurance hence why you see huge guys in the gym who are no where near as impressive doing real world tasks.
The first part of this quote doesn’t make sense I'm afraid, you can't have muscles without muscle fibres. I think what you are trying to get at is that bodybuilders are usually unable to bash out large numbers of press ups etc. Don't forget that this then attributed to training specificity, bodybuilders, by definition wish to add muscle and sculpt their bodies, often with the intention of getting on stage to compete. During these competitions weights are not required to be lifted; therefore bodybuilders are bad example to use. Steroid use is often synonymous with bodybuilders which is not always the case.
Don't fall into the trap of believing that "steroids are bad" or that the use of performance enhancing drugs are "cheating" without first understanding the science behind them. Don't forget that other ergogenic aids such as creatine, hyper/hypo/isotonic drinks and even multi-vitamins could be considered "performance enhancing". Unfortunately in the world of drugs, sports and ethics, nothing is ever black and white and I am glad that I am not an anti-doping officer.
Wow, long post.......
So to summerise; AAS use in the armed forces is prohibited and detention time followed by discharge if caught is likely.
Cheers