What insurgencies? Those small issues have been contained. In any case, we do not want to invade BD, so no question of having any dreams about it. There is no gain, no pride in invading a defenceless small country.If you guys could do anything, you would be able to quell all the insurgency in your country. Instead, it keeps on increasing and spreading throughout your country. You can't solve conflicts within your own country and have wet dreams of invading foreign nations. You people are truly delusional.
As for your question well, you never asked a question but rather had an intention to troll.
But I will give you the role Bangladesh can play:
1. Build a deep sea port.
2. After getting the training subs, order newer diesel subs from China. Probably the export version of either Song Class or Yuan class submarine. The Song Class itself has shown its stealth ability by popping up at a US aircraft training. And they couldn't even detect it but rather saw it after it surfaced. That will give India some headache, thinking of it every time they enter Bay of Bengal.
3. Invite more Chinese warships for joint training into both Bangladesh part of Bay of Bengal and the International waters part.
And I asked about real role that BD might play in Asia's maritime balance, not BD wet dreams!