If they were equals then how did the Congolese lose?

They didn't, the Portuguese supported a king to the Kongolese throne and he accepted vassalage to protect his power.

Though that likely wouldn't have happened had there not been the Kongo civil war, which lasted forty years, sacked Sao Salvador, and left the kingdom in a general mess with the king only nominally controlling most of it, so there's the smoking gun really.

If they were equals then how did the Congolese lose?

Two military forces may be using technology which is equal, in all respects, this does not indicate that those forces will of necessity fight to stalemate.

It is more likely that one side will lose. If the issue is fought without let it is most likely that one side will lose decisively. That loss will be due to a failure in one or more of the following factors.

Strategy
Tactics
Leadership
Materiel
Logistics
Training
Intelligence
Morale
Willpower
Numbers

This is naturally the case.

Logistics
Intelligence
Morale
Willpower
Numbers

are on Congo's side %100 and the rest is 50/50


So why did they lose?

Edit: Because they were kangz n shiet

Edited 8/31/2017 10:34:05