I was putting about 100 M249 bullets into the engine of a HUMVEE and suddenly the whole body texture changed into bullet pierced (when I only had shot at the engine).

我对这悍马车的引擎发射了大概100发m 249子弹，整个车身的贴图突然变成了被子弹打得千疮百孔的样子(我只朝引擎开了枪)。

youdao

The US Army uses two distinct families of weapons in 5.56 x 45 mm calibre: the M16 rifle and the derivative M4 carbine form one group, the M249 Squad Automatic Weapon the other.

美国陆军使用两种截然不同的5.56毫米口径木仓族：一种是M16步木仓以及其派生出来的M4卡宾木仓，另一种是M249班用机木仓。

youdao