The latest Battlefield blog has dice "addressing" the concerns players have over the netcode and tickrate issues found in Battlefield 4. So, what are they going to do to fix the terrible tickrate? Well, not much.
Tickrate

So they might put up a slight fix on only a few servers. Then again, they might not. Most servers won't be changed no matter what, so it seems as though this issue is just being brushed aside as a non-issue. Alright, so that's just one of the few things they're looking into or are trying to actively fix right now. Here are the rest.
Rubber banding
We have made several server optimizations that have decreased rubber banding for some players. To further address the issue, there are upcoming fixes for packet loss and a customize screen bug, both connected to the rubber banding issue. Furthermore, we will continue to collect data to pinpoint exactly when and why rubber banding is occurring.

Kill camera delay / Player death sync
On some occasions, the kill camera would trigger before the game client displayed the last portion of damage being dealt, giving players the impression that they died too early. There were also issues with blood effects, damage indicators, and the health bar in the HUD being out of sync. A fix for this will be included in the next game update.

No registered damage
We are aware of the bug where players have been firing at their opponent and not doing damage. In the February 13 game update for PC, we added a piece of code that enables us to specifically track instances where this would occur. We are currently looking at when this issue is triggered, and what causes it. The data that we receive will help us to further improve the firefights in the future.

Instant death while sprinting
At certain occasions while walking or sprinting, a player could get catapulted at high speed which would cause death if any object was standing in the way. This was caused by a mathematical error in the character physics code, and we have a fix prepared for an upcoming patch.

Various Items
In addition to these items, there are also fixes coming for issues with Levolution being out of sync, shots appearing to be fired in the wrong direction, and vehicles outside the infantry area not taking damage when fired at. Also, we have introduced new in-game icons that will help you, and us, to troubleshoot network related problems that could cause an inconsistent multiplayer experience.

Why are these issues still so prevalent this many months after the game was released? It shouldn't still feel like we're all still beta testing an unfinished product.