Yes, MM is an easy way to get cancer. Also, every game that is abandoned for so many years is very likely to run on modded servers. Oh, and csgo has several modded servers, they can be found under the "community maps" section. Overall every cs version excluding csgo and sauce were better games mechanism-wise. Csgo has better graphics, which is obvious for a game that was made two decades later. Molotovs are not something special, you cannot say that it affects the whole gameplay, since they can be countered by a smoke immediately (and sometimes you dont even need to put the flames out).