Among the design decisions that Satisfactory made meaningless by poor balance, Weapons is solidly middling. It would make sense if you had to clear areas of enemies to unlock the ability to build on them, and/or if higher-tier weapons were required to defeat higher-tier enemies (the kittens). As it stands now, it's such a non-mechanic - You get Xeno Basher and are more or less set until enemies are made completely meaningless by rifles. They've just reworked the system and it's even more meaningless by the addition of new ammo types and cool things to do with them, which I hope is a precursor to making you use those ammo types. There is the potential and even promise of such - See the "Crab Battle" trailer.

What really bothers me about Satisfactory is how inefficient rails and other modes of transport are compared to just running a long conveyor of advanced products. If you compact even two tiers onsite, a single T2 conveyor can handle a large area's worth of resources. Capacity and throughput for trains are limited by their limited input slots, too. Nested hub and spoke factories make a lot more sense than trying to ship everything raw to a central location, but all of the tier upgrades are around shipping more further.