BF isn’t Milsim like Squad but it has always had elements of a war simulation that differentiated it from other types of game. Hence the appeal for me.
to say bf isn’t a Milsim is to basically be a pedant.
I would argue that BF is more Milsim than other games because it combined many elements, with an Arcady approach. Elements that were geared around teamwork and meeting goals and objectives. it also has a mix of vehicle and ground roles that need to work together to balance each other out.
The points systems helped to reinforce the objectives amd roles, as you were rewarded for playing those roles well, and doubly so if the team worked together.
Various versions of BF also tried out different types of map progression/game types, likely based on tactics that played out in real world scenarios. (Something that more experimentation might be good for BF).
If I cast my mind back to way back when bf first came out, the big thing I noticed, was how difficult it was if your didn’t play as a team, fortunately I was doing lan parties back then so had 30+ * heads battling each other as teams. It was great. Though I admit, counterstrike held over as the main game of choice. That said, BF certainly for a while was something we played semi regular as you mentioned. And whilst we didn’t go all out sim with ranks and so forthe, we did play it in a more Milsim way than say straight up death match.
basically, I’d say BF is as milsim as you can get before actually being a Milsim. An arcade Milsim.
i guess arma and squad are strictly speaking more Acurately milsim.