I am using both QueryTask and FindTask in 10.2.6 runtime sdk for dotnet on a local mpk and have 2 issues with them.
The first issue is that a QueryTask names the attributes of the features using the column name. A FindTask names the attributes of the features using the Alias name.
The second and more important issue is that the FindTask does not populate the Subtype columns. QueryTask works correctly so my work-around is to use the FindTask to initially find the features in the various layers and then use a QueryTask for each layer selecting via the object id's found by the FindTask.
Has anyone else come across these issues?