Note: this is not a suggestion, I only know the basic ideas and I want to have a deeper understanding of this before I put anything into the suggestion forum (I've seen ppl get flamed harshly for not knowing what they were talking about).

So I was thinking about this as a sort of lag compensation to make the game a little easier for players from Asia, Oceania, South America, etc. where OOO don't bother to provide servers. For those of you who don't know what client-side gameplay, let's look at it in a hypothetical FPS, where hit detection matters a lot. Let's pretend there are two players in a deathmatch, A and B.

Server-side hit detection: Player A fires his gun at player B. Every single action takes place on the game server and only the game server. This may cause player A to miss the shot due to server latency even if his onscreen gun was aimed at B. Therefore, we can conclude that player A (the attacker) is getting the BS with this type of hit detection.

Client-side hit detection: Player A fires his gun at player B. A's game client sends a signal to the server saying "I hit B". Then the server interprets the signal and makes B take damage. This may cause player B to get shot and killed due to server latency even if, on his own client, he was not standing in A's line of fire. Therefore, we can conclude that player B (the target) is getting the BS with this type of hit detection.

Why, then, do I want to discuss client-side gameplay in PVE? Because in PVE (essentially the campaign mode of the game) there is no hypothetical player B to take the BS. It would make the game a lot more accurate for those not fortunate enough to live in places near the SK servers.

Note: this would NOT work in PVP, because gunners would then have a perceived advantage due to their targets not being able to dodge shots properly (if the gunner gets a hit in a client-side game, then his/her target would take damage regardless of actual position). It would only cause more problems.