the TRAPPIST species evolved on a hot planet, therefore the bug-like body

Okay. Here's the hurdles:

You'll have to postulate why the allied races don't have their own ships, or why they're not available.

they have their own ships too

they dont have many

they're less advanced than humanity

Also describe how being cut off from Earth affects the relations, because other than just being friendly, they need a realistic reason to be allies. Trade, mutual defense, etc.

good idea

this takes place around 4000 AD

so far future

Since they have their own ships, there has to be a reason why they can't bolster the Earth fleet. Refits from the war, a simultaneous strike that hit them, etc.

They do help the human fleet

they have worse industry than humanity

so the other 2-3 alien races only supply about 40 ships

and they're all smaller corvettes/frigates armed with missiles instead of mass drivers

That's not my point. If the Earth fleet can only field 80 ships because of the debris field, nothing stops the allies from helping out.

Unless you included them in the tally.

I mean the aliens have very few ships

I included them

in the tally

humans have a huge industrial power

Okay. LOL I was thinking if the humans have 80, what are the rest doing?

lol

its basically a shitshow

the leader of the fleet is a lieutenant

because every other higher officer gets killed

Are you planning on doing it ship scale, fleet scale, or grand scale?

fleet scale

basically focusing on one person

who enlisted in the navy

Okay, that's more ship scale.

yeah

Battlestar Galactica was mostly ship scale.

okay yeah

then ship scale

its hard to do a good grand scale

Very. LOL

because you dont get to know anyone

basically the main character is the leader of the fleet

I started slow in my own main universe, then expanded from there until it was huge.

nice