*If you are within approx 120m of an enemy, "combat lines" will play, which are differently toned. If you're approx. 121m or more away from an enemy, "passive" lines will play. I replaced both sets for every line; however, they aren't all unique due to lack of lines.  (Example: For D-Dog's Wait Command, "Is that clear?" only plays while over 120m away from an enemy while "Relax" only plays while within 120m of an enemy.)

I. D-Dog
a. Bark
1.) Attract the enemy's attention.
b. Call & Pet
1.) Good work.
2.) Relax.
3.) Snake.
4.) Yeah.
c. Kill/Wound/Stun
1.) There!
2.) There he is!
3.) Over there!
d. Fulton It
1.) Put it to good use.
2.) Capture.
e. Keep Them Busy
1.) Divert their attention.
2.) Attract the enemy's attention.
f. Wait
1.) Relax.
2.) Is that clear?
II. D-Horse
a. Defecate
1.) Damn!
2.) Of all the...
b. Riding
1.) *Silence*
c. Stay Back
1.) Keep running!
2.) Move!
III. D-Walker
a. Intercept Mode
1.) Make every shot count.
b. Normal Mode
1.) Relax.
c. Search Mode
1.) Scouting is key.
d. Stealth Mode
1.) Stealth.
IV. Quiet
a. Cease Cover
1.) Good work.
2.) Relax.
3.) You've gotten stronger.
4.) Your skills have improved.
b. Cover Me
1.) Time to play rough!
2.) Get ready!
3.) Make every shot count.
4.) Fire one shot at a time.
5.) Divert their attention.
6.) Heads up!
c. Fire & Shoot Grenade
1.) Fire.
2.) In the head.
d. Take Aim
1.) Aim carefully.
2.) Aim for the enemy's vital spots.
3.) Watch how the enemy moves.
V. Holdup & Interrogation
1.) Pathetic.
2.) I'm disappointed.
3.) Is that all?
4.) It's no use.
5.) It's over!
6.) Tell me.
7.) Move, or you're dead.
8.) Where is he?
9.) You coward.
10.) You're wasting time!
VI. Decoys
1.) You'll just have to trust in your instincts as a gamer.
2.) What do you think you're doing?!