About the content of your post: level → 水平 × 关卡 √
play → 播放 × 游玩 √

Welcome to SMBX World! And thank you for sharing your level here! By the way, in fact when you post a thread here, using English is okay.
I have played your level and have beaten it! It is really well polished! There are many detailed effects, like when the tank's tracks pass over the ground, the ground temporarily turns black; as the time passes, the flames of war rise and the flags raise; when reaching the climax stage, there're groups of warplanes flewing over in the background as the music changes. Besides that, the sound effects you apply to this level is very realistic, the sounds of rains and tanks make me feel as if I were present on the scene. I really like these details and you've done a great job on this!
Though I have to complaint that this level may be a liitle long since there's no any check point, in which case I have to play this level from the beginning again even I have persisted until almost the end, which can make player feel frustrated. It took me several times to beat the level. Besides that, there're some small issues about the details: ① It seems that when playing this level in 1.4.5, the GFX of the black smoke particle effects seem to be incomplete, but according to the screenshots you posted in your thread, they're complete, I am not sure if it is the issue about the version of 38A player uses. ② Later in this level, some sniper rifles aren't present on the cockpit doors, is this intentional?