P.S.: I want to hear more from you, and I'd like to receive more of your suggestions. Search for the WeChat official account "qdread" now and follow us, give "War of Mercenaries" more support!
If they had enough C4, at this point, Gao Yang would have dared to order its use, even though using it would definitely lead to a super big event that would be investigated thoroughly. However, if they didn't kill Tomler, they would die very quickly anyway, certainly faster than being found out and killed later.
Unfortunately, the assault plan that targeted the convoy didn't prepare much C4 because it was useless.
The plan was to kill Tomler before he could react, not in this kind of standoff. Not to mention, in this time, Tomler could have made many phone calls, and as long as Tomler made one call out, notifying his assistant it was the Satan Mercenary Corps' doing, then all the efforts of Gao Yang and his team would be meaningless.