As mentioned earlier I am going through the rulebook with a small comb reading and digesting as I go along in one of my plays. And in this I am searching for errata that I point out to help create version 3.
In this case, it is in rule 5.1.4 when it talks about "infiltration". It says:
If no Infiltrate icon the attempt fails and becomes a regular Move to an Adjacent Card Action (still costs two and an Exposed marker is placed on the unit[s]).
The part that gets me is the "still costs two". That is not true according to the table. A normal infiltration (not a platoon infiltration) only costs 1.