The integration of the steam online subsystem with friends, user cloud etc. might come in the future but at least not anytime soon.
The modern snipers pack is not actually being made by me but another team, and as far as I know it is not far from completion.
I will probably make a tutorial about adding maps and setting up the minimap in the next days.
Well the networking is fairly optimized, however this is the Unreal Engine and I would say it is a little bit more of a compromise between performance and quality (devs please correct me if I am wrong here). You would never achieve such a fluent gameplay like in the Source engine for example, but on the other hand you can produce way nicer graphics.
You can disable the arms lag by either changing the soldier or soldier anim instance code or simply disconnecting the “ArmsRotation” and “ArmsOffset” nodes in the soldier anim blueprint.
How many frames do you get when playing the demo? Does the input lag get significantly better when you turn down all graphics settings? I read that the render thread in UE4 is always 1-2 ticks behind the game thread, which doesn’t really matter for most games but if you want something responsive as for example CS:GO this might be an issue.
Those options are defenitely something I will look into.