If 3 teams are tied in that scenario (games won is the same and no forfeits), you need to rank the tied teams by the goal difference, only counting games between the tied teams.
If after that:
– Team B is on +2
– Team C is on -1
– Team D is on -1
Then Team B is Ranked above Team C and Team D.
Then as per B3.3.2, you go back to Head to Head to rank Team C and Team D (B3.4.1)
Therefore Team D is ranked above Team C, as Team D beat Team C.
Hope that helps