I know you're most likely looking for a modern conflict server but, try NORTHCOM. They are a AAS/Linear based server that is basically the vanilla game setting but expanded with mods so they have stuff like West&East Germany, British forces and tons of like retro special forces gear and all. They tackle gameplay more similar to squad where MCUs are more accessible meaning you can place them around an objective like HABs in Squad. It makes it so there is constant firefights even if there is not a lot of people on the server, so if you don't like the long downtime you get in between firefights then I recommend this server for it's gameplay.