Always 1 model; it needs to be possible to counter snipe the sniper AND remove the vet its gained, other wise it will always be imbalanced.
Snipers are inherently high risk:reward units. On one hand, every shot is a guaranteed 20-40mp drain on the enemy. On the other, one shot can cost you 360mp and vet. Disrupting that risk factor basically ruins sniper play, since one player is risking 360mp AND all vet whereas the other is risking a reinforcement cost.
Thanks for the reasoning. However, I wouldn't subscribe to that, I'm afraid. First up, if counter sniping needs to be possible, by extension this would mean that all factions would need to have access to a sniper (or no snipers at all). Secondly, OH sniper sort of has the option to counter snipe with the famous double tap...
Regarding the MP argument: Assuming the sniper makes it back to base, the 1 man sniper only needs heal. The 2 man sniper team might require reinforcement which is rather expensive (adjusting that cost might be another way to balance the unit, no?). So, from that point of view, the 2 man team is worse. Now, the obvious question is how likely it is for the two concepts to make it back to base.
So, we have 2 models with 64 HP vs. 1 model 82 HP...
Now, there are a lot of ways a sniper can die:
- Countersniping
- Vehicles
- Explosives/Indirect fire
- Infantry (flanks) or generally small arms
(note: Certainly, the points vary in effectiveness, also depending on the opposing faction; also, the patch contains changes affecting almost all of them).
I'll give you that in the "Countersniping" department the 2 man team clearly has advantages (subject to the remarks above). Also, the overall greater health likely helps vs. small arms (potentially also another knob to tune). However, for the other two points I'd claim it is far less obvious which sniper concept provides more survivability.