If Cyanide follow the rules, they must add Jumping over obstacle to every player following this rule.
I think they dont add it yet because they can't programm it... (maybe the NASA and NSA can't too)
JUMPING OVER THINGS
What with all these nasty obstacles getting in the way, players will
often be tempted to leap over an obstacle. This is just fine, but occasionally
they will blow it big time and fall in, with the effects
described above. A player can jump over an obstacle as part as his
move, each square of the jump costing a square of movement. Roll
a D6 after making the jump, subtracting -1 from the score if there
are any enemy tackle zones on the squares being jumped from or to
(note that you never get more than a -1 modifier, no matter how
many tackle zones are around). If the score is less than the number
of squares jumped over, the player falls in. If the score is equal to
or greater than the number of squares jumped over, then he makes
it safely.
In my opinion you can jump over
obstacle or
prone player.