I have the latest version 3.1.2 and people who are cheating don´t get synchronisation error (2+2=5).
A example: cyborg-mafer (A player online) cheated a building that is not possible in a non-mod-map. Normally he should get desync error but it doesn´t and I can see then the building -> And if he wins using those buildings the other team loose
Is that because (As he said) he has the version 2.2.1??? - But I have the latest version and I should be safe from cheating or not???
It's more of a question of what the synch code doesn't cover. Since the power isn't synchronised, people can't cheat by giving themselves extra power, since the other players won't see the imaginary power (and the other players won't see anything they try building with it, either).
Although if someone tries (and fails) to cheat with power, the desynch code catches it and shows a “2+2=5” warning that something went wrong. This isn't to catch cheaters (since if it appears, it means that they didn't successfully cheat), it's actually for debugging and detecting if something goes wrong due to bugs in the code. If you see the “2+2=5”, and someone has a slow connection, then the game might freeze, since all players are then automatically sending their versions of the desynch logs to each other, for later debugging.
P.S. Actually, there is a way of synchronising changes to power or creating tanks out of nothing, but it's disabled unless you and all the other players simultaneously enable debug mode, then everyone can suddenly “cheat” and/or debug as much as they want. (And of course, the other clients can't convince your client that you enabled debug mode, unless you really did.)
contra principia negantem non est disputandum
