I think it would be cool if weapons are modifiable. There could only be stock weapons findable but also attachments e.g. scopes, silencers and so on. For example you find AK74 and cobra scope, you could combine that to AKS 74 cobra. The same goes for MP5 + silencer. It could all be managed with the "combine for" option like magazine change already does! I think that would make it more difficult to find better weapons but also give the chance to have multiple weapons with you, e.g. all the different M4 versions. Also i would like to see the M79 grenade launcher in the game. As it wouldn´t be too strong because of single shot and adds one more grenade launcher which are rare to me. As it appears in the original Arma 2 OA, it would be easy to add it.