Even people who know quite a lot about university rankings only really know perhaps the top 20-30; beyond that everyone just sort of follows the rule of 'have I heard of it? does it sound like a 'proper' university?'
This means Leeds Metropolitan isn't going to really do you any favours, as they are unlikely to have heard much about it before, and the 'Metropolitan' part really jumps out, signalling its former polytechnic heritage, and the fact that it is the 'second' Leeds uni, undoubtedly some way below the 'real' one.
So for the impression on future employers, you might want to look at some different unis. There are a lot of 'decent sounding' unis in the UK.
None of this is to say that LMU is inherently bad or that the Masters course there is no good, but unfortunately this is just the way people's minds work when it comes to their impressions of universities.