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The "8mm6a without one-way portals" template has undergone thorough testing and will be used in the Novichok Summer 2014 tournament during the playoff stage. Also, this template will be used in the Tolstushka (2nd Only XL) tournament next year. In general, for this tournament, it is planned to adjust all three xl+u templates (8mm6a, 6lm10a, and 8xm12a) to eliminate one-way portals.
To replace 6lm10a, the
LiMe template is currently being tested:

One-way portals do not appear (>100 generations).
Changes compared to 6lm10a:
1)
zone 23 has been removed,
2)
all multiple transitions have become single,
3)
all guards are 3000, except for the guards at treasure rooms (17, 18, 19, 20); here, the guard is 9000, and transitions 21-22 and 24-25 are unguarded.
The main feature of 6lm10a has been preserved - there are no native camps; the path can form in such a way that enemy camps may be closer to you than your own. That is, brown for red and green for blue can only be considered "native" conditionally.
I did not change the contents of the zones.
In the folder C:\Heroes of Might and Magic III Complete Collection\_HD3_Data\Templates, create a LiMe folder and copy the file into it: