Future Heavy Weapons for U.S. Army Infantry?

New video on platforms being looked at by the army.  

1. An "enhanced 81mm" with the range of a 120mm mounted on an Infantry Squad Vehicle for airborne/air assault 

2. An XM25 type thing with dialable direct fire airburst grenades 

3. And a combined replacement for the AT4CS and M141 BDM

maxresdefault.jpg (YouTube)