Excellent questions. I'd want it to be movie-accurate enough so that there are no glaring mistakes visible to the average Aliens fan. I'm fine if it has some minor issues, but ultimately it has to scream Pulse Rifle!
As for features, I'd like a working counter. I'd also like working pump-action on the grenade launcher, but it doesn't need to actually shoot airsoft. Not really sure what other options are available (SFX, lights?).
Budgetwise, I'd like to keep it to $600-$800 if possible. I could consider paying more if need be, but would like to keep it in that range.
And I wouldn't use it for skirmishing. It would be for display with the occasional backyard shooting only.
Thanks for the reply!