To best understand the Baptism of Jesus, one should review the armory scene from The Two Towers, wherein Aragorn says, "I shall die as one of them."
By submitting to be baptized, He was taking solidarity with us. Declaring himself to be one of us and thus be our high priest.
Absolutely correct. The reveal of the reapers as the true antagonist was awesome, but came at a cost. Mass Effect is a cover shooter in which you fight man sized targets.
The rest of the series was about finding excuses to have man sized targets.
There are four areas where you'd struggle to find an Early Church father not in harmony:
1) The eucharist is the body of Christ
2) Baptism is how you receive justification
3) Christians can lose justification
4) Apostolic succession is part of ordination.