I am pretty good at squad tactics but better at designing scenarios/units.

Ideas:

I think the planet, or at least the city we are in should be somewhere cold, or rainy. Now adays a lot of combat based RPs are just somewhere hot, that's boring. All your char needs to do is drink plenty, in cold climates (especially ice) you gotta keep your temperature up, your water freezes and you could slip on black ice.

I'm currently coming up for ideas of vehicles as surely some of the non-armoured squads would have light recon vehicles? Similar to a Humvee, though less like a cardboard box.