I am dropping my Idea.

After buy suicide vest The terrorist should be hide in the map and he easily can explode his self and also it will be surprise blast for others(died players)

If we can find out the box Hide from the radar so we can took advantage from that because we can use every weapon which we want. but when you buyvest so you only have a bomber-jacket instead of all weapon, So I think this idea is cool and will more crazy.