转型,如何将单机地图改成64大图哦?

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RT........刚刚换了新卡......终于能玩BF2了...... % G- v; W6 L( N# r ( Z/ @+ G4 s7 J) H( ?网络8好...又没时间...想玩玩单机过过隐.... U6 y6 H5 w& I; _, X2 r2 z, s + _# O6 |, b/ h$ {% |7 ]求指教....越简单越好~ ' n, q: l, Y# K9 E ! t* h1 D) D9 ? D& b; M