Very simple; go into the common res folder open it with notepad and change the
part_desc paragraph change the existing smoke_fl values for these:smoke_fl,1,17,3.0,14,1,0.5,0,8.5,0.4,1.1,0,smk_sphere0,0x00000002,sh_ablendd,0xff4D4D45,0x004D4D45,1,5; nd save.You will see the difference!
No more fire camp smoke....
In fact I have toned down the tank engine exhaust smoke and tweaked the tank on fire ones a bit so why don't you replace the values for these 3 entries by these:
fire,1,3,0.7,0.8,1,0.4,0,0.7,0.4,1,0,fire_sphere0,0x00000004,sh_add,0xffFFE081,0x00FFE081,1,15;
smoke_fl,1,17,3.0,14,1,0.5,0,8.5,0.4,1.1,0,smk_sphere0,0x00000002,sh_ablendd,0xff4D4D45,0x004D4D45,1,5;
smoke_eng,1,0.8,1,1.2,1,0.2,0.2,1,0.2,1,0,smk_sphere0,0x0000000a,sh_ablendd,0xff4D4D45,0x004D2D45,1,5;