Need Name of and x-files episode.

There are two parts to this that im watching on sci fi right now its the one where aliens pose as people with like close eylids and closed mouth it looks to me and these people are on a bridge and a big triangular craft flys over them and these "aliens" start burning people and thats all i know so far can anyone help me out here?
now im watching the second part where scully is found burned but not harmed too much and now mulder jumped on a military truck that has the alien on it because its ship crashed on a military base and mulder was arrested by the MP and now its over can someone help me with the name of this epidose please?

Damn! This took some searching. The episodes that you asked about are: Patient X (Season 5, ep. 13) and The Red & The Black (Season 5, ep. 14).

The Red and the Black is the name of the episode

Or red and black got it, i need some pictures thats it i thank you guys for taking your time and looking it up for me i thank you guys again