Personally I think that "engineering career" issues should be posted to "Engineers and Technicians", but that's just me.
In this sort of case it's far from straightforward. What we have is clearly a wannabe, he just isn't entirely clear than an ATPL is what he wants-to-be. Well that's fair, who was really that certain at the age of 16 or 17 which what I assume our poster is. So, I think Scroggs, you'll have to put up with a certain amount of this - although moving pure engineer wanabee questions over to the Engineers forum would do no harm. I don't think it belongs in the private flying forum, where the conversation is generally far more to do with the fine detail of operating PPL type aircraft.
rozzoallameta
In England or Wales a first degree is generally a Batchelors, that is BEng, BSc or BA (Batchelor of Engineering, Batchelor of Science or Batchelor of Arts); in most cases this will take 3 years. An MA or MSc is then a 1 year specialist course after a batchelors (or longer part time). An MEng is a straight-off 4 year first degree in Engineering, insisted upon by the Engineering council for the current requirements to become a Chartered Engineer - that is a full "license" to practice as an Engineer, rather than technician.
An 18 year old leaving school will almost certainly only be able to register for an MEng or a Batchelors degree. In your case, which I assume is of an established professional a 1 year Masters degree - in practice probably 3 years part time, is almost certainly open to you at any British university. What you need to do is talk to the actual university and they will probably be happy to select you on a combination of interview, professional experience, and possibly some kind of entrance exam.
From what you've said about your position, I think that a Cranfield or City MSc is open to you, but you should contact the university directly about the requirements.
Regarding the two universities, both are very good but I'd recommend looking to Cranfield first because it is a specialist aviation university, rather than a good university offering specialist courses, which is what City is.
G