Да, можно, следуем по следующему пути:
C:\Documents and Settings\<Username>\Application Data\Command and Conquer 4\Profiles\<Gamename>Там есть файл
Options.ini, открываем его блокнотом, ищем строчку
Resolution и меняем на нужное вам разрешение...
Приблизительно всё это выглядит так:
Код
AlternateMouseSetup = 0
AmbientVolume = 90.000000
AnimationLOD = UltraHigh
AntiAliasingLOD = 8x
AudioQualitySetting = High
Brightness = 50
CampaignDifficulty = 0
CurrentCampaign = 1
CurrentCampaignLastMission = 6
DecalLOD = High
EffectsLOD = UltraHigh
EnableVSync = 1
HasSeenLogoMovies = yes
IdealStaticGameLOD = UltraHigh
ModelLOD = High
MovieVolume = 90.000000
MusicVolume = 90.000000
PlayerFaction = 1
Resolution = 1280 1024
SFXVolume = 90.000000
ScrollFactor = 50
SendDelay = 0
ShaderLOD = UltraHigh
ShadowLOD = UltraHigh
ShowSubtitles = 0
ShowTickerAds = 1
ShowTickerNews = 1
ShowUnitOwners = 1
ShowWeaponCounterFeedback = 1
StaticGameLOD = Custom
Telemetry = 1
TerrainLOD = UltraHigh
TextureQualityLOD = High
ToolTipDelay = 0
VoiceVolume = 90.000000
WaterLOD = UltraHigh