Well, i will give you my personal list, even if some of them wouldn't be needed in Bob because of the scenario.
1) Firefighters. See firefighters trucks throwing water to aircrafts, hangar, or what ever, that is burning. See it when you will take off from an airfield that was recently attacked.
Or see it when you land on an airfield that just been atacked.
2) Have to use aircraft that are partially damaged (for example on a mission after being your airbase attacked), or even have some instruments missing because you don't have spare parts.
3) See trucks or tanks cross rivers in open field, in areas where the depth allow it.
4) Seeing "movile bridges". I don't know the term in english, i'm referring to armored vehicles that are modified to carry a folding bridge. And see them actually working, with tanks and vehicle passing over them after it defolded its "bridge".
My apologies for not being clear here, i don't know how to explain it well in english.
5) Ugly one! Have malfunctioning bombs. You drop a bomb and it doesn't explode. Its very realistic, but nobody wants it to happen to him
.
6) Minefields: Have minefields where if you have infantery and or vehicles and tanks, you see the explosions and destruction cause by the mines.
7) Power generators. You destroy one with bombs or rockets, and lights turn off. Or something else stop working, like a radar or radio station for example.
Vehicles moving at night with ligths, and turn them off when they hear an aircraft near by (vehicles near the combat front), or are attacked by one (vehicles that are in areas that are unlikable to be attacked by an aircraft).
Can't be sure how realistic would this be, don't know if troops vehicles or civilian vehicles traveled with lights on during night when they are away from the front.
Movies are not a accurate source of information
9) Submarines: seeing submarines perform emergency sumergions when they spot bombers or several aircraft together flying towards them. But if they see a lone fighter, either submerge or decide to try to shot you down.
10) As the video posted bt mkubani, seeing secondary explosions of ships, holes made by torpedoes. Or even ships that brake in half.
11) More accurate aircraft operations. If 40 aircraft could be on the deck of the carrier and take off, i want to see that, and be part of that.
12) Silly one
. When you land after a mission, you could go out from your aircraft and walk to the building where the debriefing room is, and when you enter the building the mission stops automatically and you are on the debriefing room.
Of course, if you dont want to waste time, you can press escape and choose MISSION OVER like we do with most sims.
13) Ammunitions depots that explode and cause damage to near by buildin with all the explosiones and proyectile being throwed anywhere.
14) Very large, thick and dark smoke columns created by fuel on fire, either on ships, refinarys, fuel depots, and so on.
15) Ships AI. Ship that maneuver and react according to the situation. Complex enough to see ship battles, with ships trying to get the better firing position and formation to defeat the opposite side.
Not just SHIP1 goes straight from A to B at a fixed speed, SHIP2 goes from C to D also at a fixed speed, and they shoot each other while in range, after that they continue theyr way.
16) Ships peforming evasive maneuvers while being bombarded.
17) Hear the "pig" of the squad (there is always a pig and other pesonalities in every group) perform "unpleasent" sounds on the radio.
1
See a dog walking thru the base and pissing on aircraft wheels.
19) A damn and very disturbing insect flying inside your cockpit because it got stucked inside during take off.
20) Dolphing swiming along ships, whales swiming on the sea, shark atacking downed pilotos
21) UFO kidnapping bombers crews.
22) If you are shot down, being able to climb to the aircraft of another player, and be transported back to base.
23) Get airfields with cannibalized aircrafts, or partially damaged.
24) Aircraft being destroyed inside of hangars
25) People running around in an airfield under attack.
26) Better damage model of bridges, and realistic size of bridges. On IL-2, eveng on the bigger bridges, a fighter have's not enough space to go along the bridge.
27) See vehicles and tanks go on the same road, or route, on opposite directions at the same time, crossing each other side by side.
2
Troop camps with camouflaged nets over tents, AAA units, trucks and tanks.
29) Damaged aircraft that have crushing failures of structures because of a hard maneuver, that on a normal situation that aircraft could stand it perfectly.
30) More realistic harbours, with ships docking and undocking, cargo being transferred. In other words, like with airfields, have ALIVE harbours.
And i will finsh here for the moment.