First of all, I don't know whether the end tags are wrong at your side or it is just a posting issue here.
<bb>1</bbr>
<cc>0</ccr>
It should be </bb> and </cc>.
<bb>1</bb>
<cc>0</cc>
Solution
You need use
xElement.Elements("MetaData").Descendants()
.
var loadecg = from elem in xElement.Elements("MetaData").Descendants()
select elem;
string value = string.Empty;
foreach (var descendant in loadecg)
{
value = descendant.Value;
}