Just to try and be helpful, the name of the song the Ominous Chorus are singing is 'Polyushka Polye', a folk song.
At the beginning of "Battle of Pine Valley", Sawyer's reaction to his radioman getting sniped is to resume briefing you and your fellow COs. In open air. While artillery landed nearby.
Then he asks you to avenge the fallen private.
When the sniper narrowly misses Sawyer during his briefing, the Colonel doesn’t duck or flinch. He merely pauses in irritation, and tells Parker to deal with that guy.
At the end of the level, you're being overrun by Soviets from all sides. Suddenly, you hear a static-filled transmission from the USS Missouri, which promptly wastes a company of Soviet tanks. Then Sawyer gives you command of its guns.
Bannon staying behind as a goddamn nuke is called on his position, all to keep the Soviets from getting to the SDI.
The cutscene that plays during the New York mission after you save the Statue of Liberty from the Spetznaz commandos trying to use it to fire chemical weapons into Manhattan. If you fail, an airstrike will destroy the statue.
Colonel Sawyer: "I see green smoke! Call off the strike, damn it!"
Radioman: "This is Eagle Six, abort! Abort! Abort!"
Colonel Sawyer: (to himself) "Good work, Parker."
Two fighters swoop by, showing you were seconds from watching the Statue of Liberty be destroyed.
Colonel Sawyer: "Well, done, lieutenant. That was above and beyond the call. We should carve your name into the base for what you've done today."
Sawyer pulling a Bilingual Backfire on Sabatier — and speaking French when he does so. By keeping his response succinct and in Sabatier's native language, he's essentially saying, "You want to be annoyed with me for my command decisions? Fine, be annoyed with me. But do not try painting this as France vs. America."