SWAT: Elite Force is a massive overhaul of SWAT 4: The Stetchkov Syndicate, making it into a more realistic tactical police simulator.
v5 will add 0 buck, 1 buck, and 4 buck shotgun ammunition, effectively doubling the choices you have in using shotguns. Each round has a different weight associated with it, among other properties:
000 buck: Highest mass/penetration, lowest pellet count, lowest chance of ricochet, best odds of breaching doors (but higher chance of penetrating the door)
4 buck: Lowest mass/penetration, highest pellet count, highest chance of ricochet, lowest odds of breaching doors (but lowest chance of penetrating the door)
The number of the new weapons is simply amazes me. Can we have a complete list about the upcomming goodies, or will it be a surprise? :)
The full changelog will be posted around the time that public testing starts. Probably in a few weeks.