I'm pretty new to squad, so I thought I'd give some feedback based on my first week of playing. I don't have anything specific but I'll list a number of observations I've run into so far.
-Most importantly, shooting seems to be quite easy in the game. It usually only takes me 2-4 shots to down my target, even if I am surprised and on the move. This means firefights generally last less than a second, which is quite different than I expected from a milsim. Even in urban fighting my surroundings tend to be silent with occasional potshots since suppression and inaccuracy don't exist. I think the game could be improved by making kills more difficult to achieve.
-Medic system seems to be better than the one in PR. It's simpler for the medic, and separating hit points and bleeding is a great improvement.
-The vehicle claim system is a bit misleading. I don't think you can submit claims anywhere but the squad leader gets a claim accept interface in the map? Shouldn't it be hidden if the system is not implemented yet?
-Capping seems to be a very easy way to win a game. A lot of games end in one side losing a single point and then getting steamrolled to the last flag before they have a chance to organize defence on any flag. Perhaps some mechanic could be useful to slow down capping, such as unlocking the next flag after a few minutes' delay? It could be that I've just ended up on a server populated by imbecilles, but it has happened several times already.
-Vehicles seem to be very durable. Firing a HEAT at a tinfoil-armored BTR and seeing it scoot off practically undamaged is quite frustrating. Spending a full squad's load of RPGs to destroy a single APC doesn't make a lot of sense to me. Perhaps this is just a stand-in while we're waiting for heavier vehicles, but I find it very jarring personally.