the problems with this game, lets start with dm
the maps are very poorly designed, the only decent dm map is heatray, all the rest are pretty terrible for competitive play. the game is way too spammy, the flak spread is way too wide while still doing full damage at range. rockets are too easy to use now, the splash damage is way too big. the hitboxes for the characters are bigger when using rockets flak and minigun than when using shock rifle or sniper. the hitscan is still broken, u still have to lead shots even when playing single player. u cant actually aim at the enemy u have to aim about half a second in whichever direction he is moving. its only worse when u add in the lag on multiplayer because the netcode is so bad. if u want to fire the flak secondary forward and not up u have to literally aim it at the ground because it fires at a near 90 degree angle straight up out of your gun. u get stuck on nearly every object in the maps. game is full of sticky polygons and it can be tricky to get urself unstuck in the heat of battle. sound code is broken, enabling hardware openal causes constant random crashes, and with it off you dont get 3d sound, so any sounds behind u dont get played so your effectively blind in that regard.
with all these problems with the core aspects of dm, any other mode wont be enjoyable. at the heart of every shooter if the dm gameplay isnt done right, adding any number of vehicles or twists wont make it fun. the dm element has to be the primary design point of a fps. also the vehicles are way over powered now, mostly because the shock rifle has lost all its stopping power and hitscan is broken.
as for the graphics it rly isnt much more advanced than ut2k4. u have the base textures which are usually very low res with a somewhat higher res bump map tetxure applied over it. the lighting is pretty much all prebaked simple light maps, theres not rly much realtime lighting here. the poly counts are also pretty low, and the shadows are mostly non existent except for the characters and vehicles. and those are pretty low res shadows with lots of pixelization, especially the self shadows.