Right now the way search filters work is terrible.
And for the same reason.
They all figure in connection.
There isn’t a skill based search.
Whats happening is with the player base dropping.
Solo players are filling empty spots on the team with out an organised group. (More often)
A filter with that priority in mind would be a godsend.
The following are the filters I would suggest.
Competitive; skill based and full lobby support (max 12) with a little attention to connection.
.
Casual; random skill but teams are assembled in a balanced manor.
(Max party size 5.)
.
Connective; connection based matching, balanced teams based on skill, after matching before game starts.
.
Casual would give solo players a fair chance, to play without facing an organised group.