Congrats on finishing the jam! I played through both routes :)
I think that the game is really well done for a game jam and I think it's a concept worth exploring more!
I think the story might be more impactful with more lore to make the player question the situation. For example giving some background on the situation that required peace talks. What is the player's relationship to the situation if any? Could we show the Commander being correct early on and so you may think to not doubt them later? Is there a way to have the player's critical thinking skills come into play? Where the player is fed pieces of information that may or may not be biased and they need to determine what is right? Essentially - can we trick the player to being in the character's shoes?
Otherwise the art was pretty solid and the audio was good. There was a bug where the player kept walking even when I was standing still so the footsteps kept being triggered. The radio also took a very long time to start playing audio when switching between channels - I thought it was broken.
Nice hidden room with the definitely not a body. I hope that wasn't our dear friend - gives some questions on our own character.
The endings felt a little lacklustre. I expected to see the planet blow up, or us blow up because we didn't choose the right option. Instead I didn't even realize the game had ended.
Otherwise great job! This is a good base for expanding the concept!