If you could make any add-on you want without a engine change...

[Klocko]

/title
That would be awesome. This is NOT a suggestion.
talk about it

[Ad Bot]

[pecon98]

Ragdolls.

[Ipquarx]

Better vehicle physics.

[Isaac Fox]

2D Playertype.

[Gsterman]

Buildable vehicles

[fred da kiko]

Better collision modification.

[elm]

Stuff.

[Dexxtter]

Better vehicle physics.

[DaSord213]

Better vehicle mechanics in general. Being able to properly walk around inside of vehicles while they move, submarines, planes, etc.

[lolz??]

run on frostbite 2

[bejacks]

Buildable vehicles

Already done.

[heedicalking]

Already done.

buildable vehicles that are actually done right.

[bejacks]

buildable vehicles that are actually done right.

Well, on Wehmarcht's server they worked pretty well.

[MunkeyCheez]

terrain that is compatible with SS

[CharlesSpeaking]

i don't know for sure

perhaps a not-so-serious weapon pack

with a minigun that shoots faster than any minigun ;=;

or some sort of RP mod

or mafia madness