I don't know what happened, but when @rt-international deny the existence of variable explosion fields, they forget their own documentary (@dod how is the square nuking progressing :D?).
it is something that should never be possible with chinese sold weapon. wysiwyg. there is everything, and nothing more and nothing less. as is.
why? first many will say it's a great potential tactical advantages if those weapons are used against us.
I disagree, it's a total breach of trust. of course they may be used against us. but as we will win.
once we do, we can be clear to the world that we did against the batch we sold to them.
sadly, 1 they won't have the latest batch, all customers understand it, and secondly, even with an earlier batch we would in anyway !
again as the saying goes, you enter just once war against china... problem most foreigners believe they fix the timeline and even more amusing the ending :D.
as said 400+years ago, you better win, otherwise it's eternal war :) !
in short : clean gears ( and as trust build around the world, disponiblity will increase even on older batches, as they are integrals).