New gameplay modes: Capture the flag, King of the Hill, frag the commander--unknown Thanks to Napalm Cobra for this suggestion. Capture the flag could be like "capture the commander." And I know there's a perfect map for King of the Hill already.
3D engine--done
Shadows--done
Diffused clouds and smoke shadows--np
High-polygon and reflective unit models--in progress, and looking good!
Camera modes: chase cam, OTA overhead, FPS, and free-floating camera--done
FPS unit control--done But could we make it more like the dune buggy in Half Life 2?
Picture in picture--np
Multiple monitor support--holy cow! I can't believe it! It works!!!
Monitor runs more than 60 hz--unknown But badly wanted!
Deformable terrain--done
RE-formable terrain--done! Could we get the construction units to level out all the land before they build instead of blowing it up and leveling it out first?
GUI--in progress (it's translucent and resizable, but still looks like it has placeholder graphics)
TA demo recorder/TA Hook integration--done
Weapon IDs expanded--done
Upgraded sound--done? not sure whether it has higher quality than OTA.
3D sound effects--unknown? I can't tell yet.
OTA music--in progress Any news on this Blacklinger?
Contextual music (like OTA)--unknown
High-polygon unit models--in progress This is a fan-based project that is doing a very good job!
Unit Trails--in progress planes have them at least sometimes, but what about ground units?
Dynamic lighting explosions--np
Day-night cycle--np
Weather effects (rain, snow, fog)--np But the clouds move!
Wrap-around maps (like a donut, cornerless)--np I REALLY want this. Play Moonbase Commander!
Fade-out/dither areas out of visability--done[/color] Although it's slow to update.
Formations--in progress Let's get some more advanced ones!
Copy/paste unit orders--np
Construction units automatically rebuild structures they guard--done!
Combined build menus--done
Mouse-over-construction energy/metal use info--unknown Would be helpful.
Automate metal maker turnoff--np
Smooth scripting--done
OTA mod compatibility--done Sorta... I'm getting weird results.
Trampeling Trees--done
auto-reclaim trees / smooth terrain when building--done but smoothing doesn't work unless you blow up the land first
End Game Statistics--in progress not implemented yet
Random Spawn Points--in progress (very good idea!)
Skirmish A.I.--in progress And badly needed!
Improved Pathfinding--done
Guarding units do not crowd each other--done
Combat Experience makes a difference--in progress
Trees jam radar--officially "SY-considered" not implemented
Hills jam radar--done
gunfire trajectories--done
aircraft fly like real aircraft--done
no more infinite bombing--done
unit movement effected by deformation--done
minimap updates as land deforms--done
graphics details options--done
multiple players per side--done

Allow "mobile factories," units that can build on themselves--unknown. Suggested by zwzsg.
saveable unit restrictions--unknown. But it was in OTA!