After the first tactical marine squad, I've also created an assault marine squad to complete my troop - it's not much, but wanted to share it anyway.
Was pretty tricky to print with my Ender 3, but it worked with a lot of supports and patience when peeling them of ;)
P.S. Since I'm a newbie to the modelling itself, I made some mistakes resulting in non-manifold models and big file size - sorry, maybe someone here is trained in fixing such issues easily.
I will try to fix that myself in the future, but had some troubles yet.