The first question is about the reliability of faith in the eyes of Scotus and Thomas. The other question is about the difference, if any, between their thoughts on faith and reason. As to the first question, it is quite clear that both doctors proclaim the reliability of faith. As to the second question, the answer is that there are differences between the two teachings. Aquinas on the one hand holds that faith is reliable, but on the other hand he maintains an Aristotelian theory of knowledge.
All knowledge is derived from the senses.
The human intellect can not operate without phantasms or sensory data. And yet, the human intellect is not dependent on a corporeal organ for its proper operations and the human soul is incorruptible. There is one human soul for each human person and that soul is the form or act of the human body. It is the business of the intellect to know natures and essences in their common or absoluteley considered natures. But still, a knowledge both of itself and of particular things is possible for the human intellect.