The other two sniper squads are set exactly like this. Few of the benefit of this configurations that I experienced are:
- Deliberate small footprint to avoid getting spotted by tanks so easily
- Engineers to build rallies just in case you need one
- Gunners to ambush enemy tanks (very useful if you monitor their traffic)
- Snipers just in case if you want to snipe targets
- Everyone is equipped with shovels so you can build hasty panzerfaust trench
The con is of course smaller squad footprint causing you to take more time when capturing a point.